octave-3.0.3:5> x = 42 x = 42 octave-3.0.3:6> diary off octave-3.0.3:8> x = -1:.1:1 x = Columns 1 through 8: -1.0000 -0.9000 -0.8000 -0.7000 -0.6000 -0.5000 -0.4000 -0.3000 Columns 9 through 16: -0.2000 -0.1000 0.0000 0.1000 0.2000 0.3000 0.4000 0.5000 Columns 17 through 21: 0.6000 0.7000 0.8000 0.9000 1.0000 octave-3.0.3:9> help meshgrid -- Function File: [XX, YY, ZZ] = meshgrid (X, Y, Z) -- Function File: [XX, YY] = meshgrid (X, Y) -- Function File: [XX, YY] = meshgrid (X) Given vectors of X and Y and Z coordinates, and returning 3 arguments, return three dimensional arrays corresponding to the X, Y, and Z coordinates of a mesh. When returning only 2 arguments, return matrices corresponding to the X and Y coordinates of a mesh. The rows of XX are copies of X, and the columns of YY are copies of Y. If Y is omitted, then it is assumed to be the same as X, and Z is assumed the same as Y. See also: mesh, contour. /Applications/Octave.app/Contents/Resources/share/octave/3.0.3/m/plot/meshgrid.m Additional help for built-in functions and operators is available in the on-line version of the manual. Use the command `doc ' to search the manual index. Help and information about Octave is also available on the WWW at http://www.octave.org and via the help@octave.org mailing list. octave-3.0.3:10> [XX, YY] = meshgrid(x, x) XX = Columns 1 through 8: -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 Columns 9 through 16: -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 Columns 17 through 21: 0.60000 0.70000 0.80000 0.90000 1.00000 0.60000 0.70000 0.80000 0.90000 1.00000 0.60000 0.70000 0.80000 0.90000 1.00000 0.60000 0.70000 0.80000 0.90000 1.00000 0.60000 0.70000 0.80000 0.90000 1.00000 0.60000 0.70000 0.80000 0.90000 1.00000 0.60000 0.70000 0.80000 0.90000 1.00000 0.60000 0.70000 0.80000 0.90000 1.00000 0.60000 0.70000 0.80000 0.90000 1.00000 0.60000 0.70000 0.80000 0.90000 1.00000 0.60000 0.70000 0.80000 0.90000 1.00000 0.60000 0.70000 0.80000 0.90000 1.00000 0.60000 0.70000 0.80000 0.90000 1.00000 0.60000 0.70000 0.80000 0.90000 1.00000 0.60000 0.70000 0.80000 0.90000 1.00000 0.60000 0.70000 0.80000 0.90000 1.00000 0.60000 0.70000 0.80000 0.90000 1.00000 0.60000 0.70000 0.80000 0.90000 1.00000 0.60000 0.70000 0.80000 0.90000 1.00000 0.60000 0.70000 0.80000 0.90000 1.00000 0.60000 0.70000 0.80000 0.90000 1.00000 YY = Columns 1 through 8: -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 Columns 9 through 16: -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 Columns 17 through 21: -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 0.00000 0.00000 0.00000 0.00000 0.00000 0.10000 0.10000 0.10000 0.10000 0.10000 0.20000 0.20000 0.20000 0.20000 0.20000 0.30000 0.30000 0.30000 0.30000 0.30000 0.40000 0.40000 0.40000 0.40000 0.40000 0.50000 0.50000 0.50000 0.50000 0.50000 0.60000 0.60000 0.60000 0.60000 0.60000 0.70000 0.70000 0.70000 0.70000 0.70000 0.80000 0.80000 0.80000 0.80000 0.80000 0.90000 0.90000 0.90000 0.90000 0.90000 1.00000 1.00000 1.00000 1.00000 1.00000 octave-3.0.3:11> size(XX) ans = 21 21 octave-3.0.3:12> YY YY = Columns 1 through 8: -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 Columns 9 through 16: -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 Columns 17 through 21: -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 0.00000 0.00000 0.00000 0.00000 0.00000 0.10000 0.10000 0.10000 0.10000 0.10000 0.20000 0.20000 0.20000 0.20000 0.20000 0.30000 0.30000 0.30000 0.30000 0.30000 0.40000 0.40000 0.40000 0.40000 0.40000 0.50000 0.50000 0.50000 0.50000 0.50000 0.60000 0.60000 0.60000 0.60000 0.60000 0.70000 0.70000 0.70000 0.70000 0.70000 0.80000 0.80000 0.80000 0.80000 0.80000 0.90000 0.90000 0.90000 0.90000 0.90000 1.00000 1.00000 1.00000 1.00000 1.00000 octave-3.0.3:13> XX(1,:) ans = Columns 1 through 8: -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 Columns 9 through 16: -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 Columns 17 through 21: 0.60000 0.70000 0.80000 0.90000 1.00000 octave-3.0.3:14> XX(:,1) ans = -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 octave-3.0.3:15> XX(:,1) ans = -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 octave-3.0.3:16> XX(1:2, 1:2) ans = -1.00000 -0.90000 -1.00000 -0.90000 octave-3.0.3:17> XX(:) ans = -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 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1.00000 1.00000 1.00000 1.00000 Columns 433 through 440: 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 Column 441: 1.00000 octave-3.0.3:19> help plot -- Function File: plot (Y) -- Function File: plot (X, Y) -- Function File: plot (X, Y, PROPERTY, VALUE, ...) -- Function File: plot (X, Y, FMT) -- Function File: plot (H, ...) Produces two-dimensional plots. Many different combinations of arguments are possible. The simplest form is plot (Y) where the argument is taken as the set of Y coordinates and the X coordinates are taken to be the indices of the elements, starting with 1. To save a plot, in one of several image formats such as PostScript or PNG, use the `print' command. If more than one argument is given, they are interpreted as plot (Y, PROPERTY, VALUE, ...) or plot (X, Y, PROPERTY, VALUE, ...) or plot (X, Y, FMT, ...) and so on. Any number of argument sets may appear. The X and Y values are interpreted as follows: * If a single data argument is supplied, it is taken as the set of Y coordinates and the X coordinates are taken to be the indices of the elements, starting with 1. * If the X is a vector and Y is a matrix, then the columns (or rows) of Y are plotted versus X. (using whichever combination matches, with columns tried first.) * If the X is a matrix and Y is a vector, Y is plotted versus the columns (or rows) of X. (using whichever combination matches, with columns tried first.) * If both arguments are vectors, the elements of Y are plotted versus the elements of X. * If both arguments are matrices, the columns of Y are plotted versus the columns of X. In this case, both matrices must have the same number of rows and columns and no attempt is made to transpose the arguments to make the number of rows match. If both arguments are scalars, a single point is plotted. Multiple property-value pairs may be specified, but they must appear in pairs. These arguments are applied to the lines drawn by `plot'. If the FMT argument is supplied, it is interpreted as follows. If FMT is missing, the default gnuplot line style is assumed. `-' Set lines plot style (default). `.' Set dots plot style. `L' Set steps plot style. `N' Interpreted as the plot color if N is an integer in the range 1 to 6. `NM' If NM is a two digit integer and M is an integer in the range 1 to 6, M is interpreted as the point style. This is only valid in combination with the `@' or `-@' specifiers. `C' If C is one of `"k"' (black), `"r"' (red), `"g"' (green), `"b"' (blue), `"m"' (magenta), `"c"' (cyan), or `"w"' (white), it is interpreted as the line plot color. `";title;"' Here `"title"' is the label for the key. `+' `*' `o' `x' `^' Used in combination with the points or linespoints styles, set the point style. The FMT argument may also be used to assign key titles. To do so, include the desired title between semi-colons after the formatting sequence described above, e.g. "+3;Key Title;" Note that the last semi-colon is required and will generate an error if it is left out. Here are some plot examples: plot (x, y, "@12", x, y2, x, y3, "4", x, y4, "+") This command will plot `y' with points of type 2 (displayed as `+') and color 1 (red), `y2' with lines, `y3' with lines of color 4 (magenta) and `y4' with points displayed as `+'. plot (b, "*", "markersize", 3) This command will plot the data in the variable `b', with points displayed as `*' with a marker size of 3. t = 0:0.1:6.3; plot (t, cos(t), "-;cos(t);", t, sin(t), "+3;sin(t);"); This will plot the cosine and sine functions and label them accordingly in the key. If the first argument is an axis handle, then plot into these axes, rather than the current axis handle returned by `gca'. See also: semilogx, semilogy, loglog, polar, mesh, contour, bar, stairs, errorbar, xlabel, ylabel, title, print. /Applications/Octave.app/Contents/Resources/share/octave/3.0.3/m/plot/plot.m Additional help for built-in functions and operators is available in the on-line version of the manual. Use the command `doc ' to search the manual index. Help and information about Octave is also available on the WWW at http://www.octave.org and via the help@octave.org mailing list. octave-3.0.3:20> plot (XX(:), YY(:), 'o') octave-3.0.3:21> plot (XX(:), YY(:), 'x') octave-3.0.3:22> plot (XX(:), YY(:), '.') octave-3.0.3:23> plot (XX(:), YY(:), 'v') octave-3.0.3:24> plot (XX(:), YY(:), '^') octave-3.0.3:25> plot (XX(:), YY(:), 'o-') octave-3.0.3:26> plot (XX(:), YY(:), 'o:') octave-3.0.3:27> plot (XX(:), YY(:), 'o--') octave-3.0.3:28> plot (XX(:), YY(:), 'a') error: plot: properties must appear followed by a value error: evaluating if command near line 58, column 6 error: evaluating if command near line 57, column 4 error: evaluating if command near line 55, column 2 error: evaluating if command near line 54, column 7 error: evaluating while command near line 41, column 5 error: evaluating if command near line 28, column 3 error: called from `__plt__' in file `/Applications/Octave.app/Contents/Resources/share/octave/3.0.3/m/plot/__plt__.m' error: evaluating assignment expression near line 185, column 9 error: called from `plot' in file `/Applications/Octave.app/Contents/Resources/share/octave/3.0.3/m/plot/plot.m' octave-3.0.3:28> plot (XX(:), YY(:), 'o') octave-3.0.3:29> plot (x, sin(x)) octave-3.0.3:30> plot (x, pi*sin(x)) octave-3.0.3:31> plot (x, sin(pi*x)) octave-3.0.3:32> help fplot -- Function File: fplot (FN, LIMITS) -- Function File: fplot (FN, LIMITS, TOL) -- Function File: fplot (FN, LIMITS, N) -- Function File: fplot (..., FMT) Plot a function FN, within the defined limits. FN an be either a string, a function handle or an inline function. The limits of the plot are given by LIMITS of the form `[XLO, XHI]' or `[XLO, XHI, YLO, YHI]'. TOL is the default tolerance to use for the plot, and if TOL is an integer it is assumed that it defines the number points to use in the plot. The FMT argument is passed to the plot command. fplot ("cos", [0, 2*pi]) fplot ("[cos(x), sin(x)]", [0, 2*pi]) See also: plot. /Applications/Octave.app/Contents/Resources/share/octave/3.0.3/m/plot/fplot.m Additional help for built-in functions and operators is available in the on-line version of the manual. Use the command `doc ' to search the manual index. Help and information about Octave is also available on the WWW at http://www.octave.org and via the help@octave.org mailing list. octave-3.0.3:33> fplot ("sin", [-pi, pi]) octave-3.0.3:34> plot (x, sin(pi*x)) octave-3.0.3:35> legend ("sin") octave-3.0.3:36> title("Sinus von x") octave-3.0.3:37> xlabel("x") octave-3.0.3:38> ylabel("sin (x)") octave-3.0.3:39> M = [0 -1; 1 0] M = 0 -1 1 0 octave-3.0.3:40> M = [2; 6] M = 2 6 octave-3.0.3:41> x x = Columns 1 through 8: -1.0000 -0.9000 -0.8000 -0.7000 -0.6000 -0.5000 -0.4000 -0.3000 Columns 9 through 16: -0.2000 -0.1000 0.0000 0.1000 0.2000 0.3000 0.4000 0.5000 Columns 17 through 21: 0.6000 0.7000 0.8000 0.9000 1.0000 octave-3.0.3:42> z = M * x z = Columns 1 through 8: -2.00000 -1.80000 -1.60000 -1.40000 -1.20000 -1.00000 -0.80000 -0.60000 -6.00000 -5.40000 -4.80000 -4.20000 -3.60000 -3.00000 -2.40000 -1.80000 Columns 9 through 16: -0.40000 -0.20000 0.00000 0.20000 0.40000 0.60000 0.80000 1.00000 -1.20000 -0.60000 0.00000 0.60000 1.20000 1.80000 2.40000 3.00000 Columns 17 through 21: 1.20000 1.40000 1.60000 1.80000 2.00000 3.60000 4.20000 4.80000 5.40000 6.00000 octave-3.0.3:43> plot(z(1,:), z(2,:)) octave-3.0.3:44> octave-3.0.3:44> M1 = [1 2; 3 4; 5 6] M1 = 1 2 3 4 5 6 octave-3.0.3:45> M2 = [1 2; 3 4] M2 = 1 2 3 4 octave-3.0.3:46> M1 * M2 ans = 7 10 15 22 23 34 octave-3.0.3:47> M M = 2 6 octave-3.0.3:48> A error: `A' undefined near line 48 column 1 octave-3.0.3:48> A = [ 0 -1; 1 0 ] A = 0 -1 1 0 octave-3.0.3:49> D = [ 1 2 3 1; 1 4 1 1] D = 1 2 3 1 1 4 1 1 octave-3.0.3:50> plot(D(:,1), D(:,2)) octave-3.0.3:51> octave-3.0.3:51> plot(D(1, :), D(2, :)) octave-3.0.3:52> A A = 0 -1 1 0 octave-3.0.3:53> D2 = A * D D2 = -1 -4 -1 -1 1 2 3 1 octave-3.0.3:54> octave-3.0.3:54> hold on octave-3.0.3:55> plot(D(1, :), D(2, :)) octave-3.0.3:56> plot(D2(1, :), D(2, :)) octave-3.0.3:57> plot(D2(1, :), D2(2, :)) octave-3.0.3:58> hold off octave-3.0.3:59> plot(D(1, :), D(2, :)) octave-3.0.3:60> hold on octave-3.0.3:61> plot(D2(1, :), D2(2, :)) octave-3.0.3:62> axis equal octave-3.0.3:63> B = [ 0 1; 1 0] B = 0 1 1 0 octave-3.0.3:64> D3 = B * D D3 = 1 4 1 1 1 2 3 1 octave-3.0.3:65> plot(D3(1, :), D3(2, :)) octave-3.0.3:66> C = B * A C = 1 0 0 -1 octave-3.0.3:67> A * B ans = -1 0 0 1 octave-3.0.3:68> hold off octave-3.0.3:69> XX2 = A * XX error: operator *: nonconformant arguments (op1 is 2x2, op2 is 21x21) error: evaluating binary operator `*' near line 69, column 9 error: evaluating assignment expression near line 69, column 5 octave-3.0.3:69> D D = 1 2 3 1 1 4 1 1 octave-3.0.3:70> octave-3.0.3:70> XX(:) ans = -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.80000 -0.80000 -0.80000 -0.80000 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0.10000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 0.60000 Columns 249 through 256: 0.10000 0.10000 0.10000 0.10000 0.20000 0.20000 0.20000 0.20000 0.70000 0.80000 0.90000 1.00000 -1.00000 -0.90000 -0.80000 -0.70000 Columns 257 through 264: 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 -0.60000 -0.50000 -0.40000 -0.30000 -0.20000 -0.10000 0.00000 0.10000 Columns 265 through 272: 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.30000 0.40000 0.50000 0.60000 0.70000 0.80000 0.90000 Columns 273 through 280: 0.20000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 1.00000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 Columns 281 through 288: 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 -0.30000 -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 Columns 289 through 296: 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.40000 0.40000 0.50000 0.60000 0.70000 0.80000 0.90000 1.00000 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0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 Columns 353 through 360: 0.60000 0.60000 0.60000 0.60000 0.60000 0.70000 0.70000 0.70000 0.60000 0.70000 0.80000 0.90000 1.00000 -1.00000 -0.90000 -0.80000 Columns 361 through 368: 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 -0.20000 -0.10000 0.00000 Columns 369 through 376: 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.10000 0.20000 0.30000 0.40000 0.50000 0.60000 0.70000 0.80000 Columns 377 through 384: 0.70000 0.70000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.90000 1.00000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 Columns 385 through 392: 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 -0.40000 -0.30000 -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 Columns 393 through 400: 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.90000 0.40000 0.50000 0.60000 0.70000 0.80000 0.90000 1.00000 -1.00000 Columns 401 through 408: 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 -0.20000 Columns 409 through 416: 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 0.60000 Columns 417 through 424: 0.90000 0.90000 0.90000 0.90000 1.00000 1.00000 1.00000 1.00000 0.70000 0.80000 0.90000 1.00000 -1.00000 -0.90000 -0.80000 -0.70000 Columns 425 through 432: 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 -0.60000 -0.50000 -0.40000 -0.30000 -0.20000 -0.10000 0.00000 0.10000 Columns 433 through 440: 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 0.20000 0.30000 0.40000 0.50000 0.60000 0.70000 0.80000 0.90000 Column 441: 1.00000 1.00000 octave-3.0.3:73> E = [XX(:)'; YY(:)'] E = Columns 1 through 8: -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 Columns 9 through 16: -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 Columns 17 through 24: -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -0.90000 -0.90000 -0.90000 0.60000 0.70000 0.80000 0.90000 1.00000 -1.00000 -0.90000 -0.80000 Columns 25 through 32: -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 -0.20000 -0.10000 0.00000 Columns 33 through 40: -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 0.10000 0.20000 0.30000 0.40000 0.50000 0.60000 0.70000 0.80000 Columns 41 through 48: -0.90000 -0.90000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 0.90000 1.00000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 Columns 49 through 56: -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.40000 -0.30000 -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 Columns 57 through 64: -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.70000 0.40000 0.50000 0.60000 0.70000 0.80000 0.90000 1.00000 -1.00000 Columns 65 through 72: -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 -0.20000 Columns 73 through 80: -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 0.60000 Columns 81 through 88: -0.70000 -0.70000 -0.70000 -0.70000 -0.60000 -0.60000 -0.60000 -0.60000 0.70000 0.80000 0.90000 1.00000 -1.00000 -0.90000 -0.80000 -0.70000 Columns 89 through 96: -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.50000 -0.40000 -0.30000 -0.20000 -0.10000 0.00000 0.10000 Columns 97 through 104: -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 0.20000 0.30000 0.40000 0.50000 0.60000 0.70000 0.80000 0.90000 Columns 105 through 112: -0.60000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 1.00000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 Columns 113 through 120: -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.30000 -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 Columns 121 through 128: -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.40000 -0.40000 0.50000 0.60000 0.70000 0.80000 0.90000 1.00000 -1.00000 -0.90000 Columns 129 through 136: -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 -0.20000 -0.10000 Columns 137 through 144: -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 0.60000 0.70000 Columns 145 through 152: -0.40000 -0.40000 -0.40000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 0.80000 0.90000 1.00000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 Columns 153 through 160: -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.50000 -0.40000 -0.30000 -0.20000 -0.10000 0.00000 0.10000 0.20000 Columns 161 through 168: -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 0.30000 0.40000 0.50000 0.60000 0.70000 0.80000 0.90000 1.00000 Columns 169 through 176: -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 Columns 177 through 184: -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 Columns 185 through 192: -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.10000 -0.10000 -0.10000 0.60000 0.70000 0.80000 0.90000 1.00000 -1.00000 -0.90000 -0.80000 Columns 193 through 200: -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 -0.20000 -0.10000 0.00000 Columns 201 through 208: -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 0.10000 0.20000 0.30000 0.40000 0.50000 0.60000 0.70000 0.80000 Columns 209 through 216: -0.10000 -0.10000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.90000 1.00000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 Columns 217 through 224: 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 -0.40000 -0.30000 -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 Columns 225 through 232: 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.10000 0.40000 0.50000 0.60000 0.70000 0.80000 0.90000 1.00000 -1.00000 Columns 233 through 240: 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 -0.20000 Columns 241 through 248: 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 0.60000 Columns 249 through 256: 0.10000 0.10000 0.10000 0.10000 0.20000 0.20000 0.20000 0.20000 0.70000 0.80000 0.90000 1.00000 -1.00000 -0.90000 -0.80000 -0.70000 Columns 257 through 264: 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 -0.60000 -0.50000 -0.40000 -0.30000 -0.20000 -0.10000 0.00000 0.10000 Columns 265 through 272: 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.30000 0.40000 0.50000 0.60000 0.70000 0.80000 0.90000 Columns 273 through 280: 0.20000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 1.00000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 Columns 281 through 288: 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 -0.30000 -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 Columns 289 through 296: 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.40000 0.40000 0.50000 0.60000 0.70000 0.80000 0.90000 1.00000 -1.00000 -0.90000 Columns 297 through 304: 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 -0.20000 -0.10000 Columns 305 through 312: 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 0.60000 0.70000 Columns 313 through 320: 0.40000 0.40000 0.40000 0.50000 0.50000 0.50000 0.50000 0.50000 0.80000 0.90000 1.00000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 Columns 321 through 328: 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 -0.50000 -0.40000 -0.30000 -0.20000 -0.10000 0.00000 0.10000 0.20000 Columns 329 through 336: 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 0.30000 0.40000 0.50000 0.60000 0.70000 0.80000 0.90000 1.00000 Columns 337 through 344: 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 Columns 345 through 352: 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 Columns 353 through 360: 0.60000 0.60000 0.60000 0.60000 0.60000 0.70000 0.70000 0.70000 0.60000 0.70000 0.80000 0.90000 1.00000 -1.00000 -0.90000 -0.80000 Columns 361 through 368: 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 -0.20000 -0.10000 0.00000 Columns 369 through 376: 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.10000 0.20000 0.30000 0.40000 0.50000 0.60000 0.70000 0.80000 Columns 377 through 384: 0.70000 0.70000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.90000 1.00000 -1.00000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 Columns 385 through 392: 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 -0.40000 -0.30000 -0.20000 -0.10000 0.00000 0.10000 0.20000 0.30000 Columns 393 through 400: 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.90000 0.40000 0.50000 0.60000 0.70000 0.80000 0.90000 1.00000 -1.00000 Columns 401 through 408: 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 -0.90000 -0.80000 -0.70000 -0.60000 -0.50000 -0.40000 -0.30000 -0.20000 Columns 409 through 416: 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 -0.10000 0.00000 0.10000 0.20000 0.30000 0.40000 0.50000 0.60000 Columns 417 through 424: 0.90000 0.90000 0.90000 0.90000 1.00000 1.00000 1.00000 1.00000 0.70000 0.80000 0.90000 1.00000 -1.00000 -0.90000 -0.80000 -0.70000 Columns 425 through 432: 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 -0.60000 -0.50000 -0.40000 -0.30000 -0.20000 -0.10000 0.00000 0.10000 Columns 433 through 440: 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 0.20000 0.30000 0.40000 0.50000 0.60000 0.70000 0.80000 0.90000 Column 441: 1.00000 1.00000 octave-3.0.3:74> A * E ans = Columns 1 through 8: 1.00000 0.90000 0.80000 0.70000 0.60000 0.50000 0.40000 0.30000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 Columns 9 through 16: 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0.70000 0.60000 0.50000 0.40000 -0.60000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 Columns 113 through 120: 0.30000 0.20000 0.10000 0.00000 -0.10000 -0.20000 -0.30000 -0.40000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 Columns 121 through 128: -0.50000 -0.60000 -0.70000 -0.80000 -0.90000 -1.00000 1.00000 0.90000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.40000 -0.40000 Columns 129 through 136: 0.80000 0.70000 0.60000 0.50000 0.40000 0.30000 0.20000 0.10000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 Columns 137 through 144: 0.00000 -0.10000 -0.20000 -0.30000 -0.40000 -0.50000 -0.60000 -0.70000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 Columns 145 through 152: -0.80000 -0.90000 -1.00000 1.00000 0.90000 0.80000 0.70000 0.60000 -0.40000 -0.40000 -0.40000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 Columns 153 through 160: 0.50000 0.40000 0.30000 0.20000 0.10000 0.00000 -0.10000 -0.20000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 Columns 161 through 168: -0.30000 -0.40000 -0.50000 -0.60000 -0.70000 -0.80000 -0.90000 -1.00000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 Columns 169 through 176: 1.00000 0.90000 0.80000 0.70000 0.60000 0.50000 0.40000 0.30000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 Columns 177 through 184: 0.20000 0.10000 0.00000 -0.10000 -0.20000 -0.30000 -0.40000 -0.50000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 Columns 185 through 192: -0.60000 -0.70000 -0.80000 -0.90000 -1.00000 1.00000 0.90000 0.80000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.10000 -0.10000 -0.10000 Columns 193 through 200: 0.70000 0.60000 0.50000 0.40000 0.30000 0.20000 0.10000 0.00000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 Columns 201 through 208: -0.10000 -0.20000 -0.30000 -0.40000 -0.50000 -0.60000 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0.20000 0.20000 0.20000 0.20000 Columns 257 through 264: 0.60000 0.50000 0.40000 0.30000 0.20000 0.10000 0.00000 -0.10000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 Columns 265 through 272: -0.20000 -0.30000 -0.40000 -0.50000 -0.60000 -0.70000 -0.80000 -0.90000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 Columns 273 through 280: -1.00000 1.00000 0.90000 0.80000 0.70000 0.60000 0.50000 0.40000 0.20000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 Columns 281 through 288: 0.30000 0.20000 0.10000 0.00000 -0.10000 -0.20000 -0.30000 -0.40000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 Columns 289 through 296: -0.50000 -0.60000 -0.70000 -0.80000 -0.90000 -1.00000 1.00000 0.90000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.40000 0.40000 Columns 297 through 304: 0.80000 0.70000 0.60000 0.50000 0.40000 0.30000 0.20000 0.10000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 Columns 305 through 312: 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0.90000 0.80000 0.60000 0.60000 0.60000 0.60000 0.60000 0.70000 0.70000 0.70000 Columns 361 through 368: 0.70000 0.60000 0.50000 0.40000 0.30000 0.20000 0.10000 0.00000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 Columns 369 through 376: -0.10000 -0.20000 -0.30000 -0.40000 -0.50000 -0.60000 -0.70000 -0.80000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 Columns 377 through 384: -0.90000 -1.00000 1.00000 0.90000 0.80000 0.70000 0.60000 0.50000 0.70000 0.70000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 Columns 385 through 392: 0.40000 0.30000 0.20000 0.10000 0.00000 -0.10000 -0.20000 -0.30000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 Columns 393 through 400: -0.40000 -0.50000 -0.60000 -0.70000 -0.80000 -0.90000 -1.00000 1.00000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.90000 Columns 401 through 408: 0.90000 0.80000 0.70000 0.60000 0.50000 0.40000 0.30000 0.20000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 Columns 409 through 416: 0.10000 0.00000 -0.10000 -0.20000 -0.30000 -0.40000 -0.50000 -0.60000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 Columns 417 through 424: -0.70000 -0.80000 -0.90000 -1.00000 1.00000 0.90000 0.80000 0.70000 0.90000 0.90000 0.90000 0.90000 1.00000 1.00000 1.00000 1.00000 Columns 425 through 432: 0.60000 0.50000 0.40000 0.30000 0.20000 0.10000 0.00000 -0.10000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 Columns 433 through 440: -0.20000 -0.30000 -0.40000 -0.50000 -0.60000 -0.70000 -0.80000 -0.90000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 Column 441: -1.00000 1.00000 octave-3.0.3:75> E_g = A * E E_g = Columns 1 through 8: 1.00000 0.90000 0.80000 0.70000 0.60000 0.50000 0.40000 0.30000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 Columns 9 through 16: 0.20000 0.10000 0.00000 -0.10000 -0.20000 -0.30000 -0.40000 -0.50000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 Columns 17 through 24: -0.60000 -0.70000 -0.80000 -0.90000 -1.00000 1.00000 0.90000 0.80000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -0.90000 -0.90000 -0.90000 Columns 25 through 32: 0.70000 0.60000 0.50000 0.40000 0.30000 0.20000 0.10000 0.00000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 Columns 33 through 40: -0.10000 -0.20000 -0.30000 -0.40000 -0.50000 -0.60000 -0.70000 -0.80000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 Columns 41 through 48: -0.90000 -1.00000 1.00000 0.90000 0.80000 0.70000 0.60000 0.50000 -0.90000 -0.90000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 Columns 49 through 56: 0.40000 0.30000 0.20000 0.10000 0.00000 -0.10000 -0.20000 -0.30000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 Columns 57 through 64: -0.40000 -0.50000 -0.60000 -0.70000 -0.80000 -0.90000 -1.00000 1.00000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 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Columns 161 through 168: -0.30000 -0.40000 -0.50000 -0.60000 -0.70000 -0.80000 -0.90000 -1.00000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 Columns 169 through 176: 1.00000 0.90000 0.80000 0.70000 0.60000 0.50000 0.40000 0.30000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 Columns 177 through 184: 0.20000 0.10000 0.00000 -0.10000 -0.20000 -0.30000 -0.40000 -0.50000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 Columns 185 through 192: -0.60000 -0.70000 -0.80000 -0.90000 -1.00000 1.00000 0.90000 0.80000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.10000 -0.10000 -0.10000 Columns 193 through 200: 0.70000 0.60000 0.50000 0.40000 0.30000 0.20000 0.10000 0.00000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 Columns 201 through 208: -0.10000 -0.20000 -0.30000 -0.40000 -0.50000 -0.60000 -0.70000 -0.80000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 Columns 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0.10000 0.00000 -0.10000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 Columns 265 through 272: -0.20000 -0.30000 -0.40000 -0.50000 -0.60000 -0.70000 -0.80000 -0.90000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 Columns 273 through 280: -1.00000 1.00000 0.90000 0.80000 0.70000 0.60000 0.50000 0.40000 0.20000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 Columns 281 through 288: 0.30000 0.20000 0.10000 0.00000 -0.10000 -0.20000 -0.30000 -0.40000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 Columns 289 through 296: -0.50000 -0.60000 -0.70000 -0.80000 -0.90000 -1.00000 1.00000 0.90000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.40000 0.40000 Columns 297 through 304: 0.80000 0.70000 0.60000 0.50000 0.40000 0.30000 0.20000 0.10000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 Columns 305 through 312: 0.00000 -0.10000 -0.20000 -0.30000 -0.40000 -0.50000 -0.60000 -0.70000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 Columns 313 through 320: -0.80000 -0.90000 -1.00000 1.00000 0.90000 0.80000 0.70000 0.60000 0.40000 0.40000 0.40000 0.50000 0.50000 0.50000 0.50000 0.50000 Columns 321 through 328: 0.50000 0.40000 0.30000 0.20000 0.10000 0.00000 -0.10000 -0.20000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 Columns 329 through 336: -0.30000 -0.40000 -0.50000 -0.60000 -0.70000 -0.80000 -0.90000 -1.00000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 Columns 337 through 344: 1.00000 0.90000 0.80000 0.70000 0.60000 0.50000 0.40000 0.30000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 Columns 345 through 352: 0.20000 0.10000 0.00000 -0.10000 -0.20000 -0.30000 -0.40000 -0.50000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 Columns 353 through 360: -0.60000 -0.70000 -0.80000 -0.90000 -1.00000 1.00000 0.90000 0.80000 0.60000 0.60000 0.60000 0.60000 0.60000 0.70000 0.70000 0.70000 Columns 361 through 368: 0.70000 0.60000 0.50000 0.40000 0.30000 0.20000 0.10000 0.00000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 Columns 369 through 376: -0.10000 -0.20000 -0.30000 -0.40000 -0.50000 -0.60000 -0.70000 -0.80000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 Columns 377 through 384: -0.90000 -1.00000 1.00000 0.90000 0.80000 0.70000 0.60000 0.50000 0.70000 0.70000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 Columns 385 through 392: 0.40000 0.30000 0.20000 0.10000 0.00000 -0.10000 -0.20000 -0.30000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 Columns 393 through 400: -0.40000 -0.50000 -0.60000 -0.70000 -0.80000 -0.90000 -1.00000 1.00000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.90000 Columns 401 through 408: 0.90000 0.80000 0.70000 0.60000 0.50000 0.40000 0.30000 0.20000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 Columns 409 through 416: 0.10000 0.00000 -0.10000 -0.20000 -0.30000 -0.40000 -0.50000 -0.60000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 Columns 417 through 424: -0.70000 -0.80000 -0.90000 -1.00000 1.00000 0.90000 0.80000 0.70000 0.90000 0.90000 0.90000 0.90000 1.00000 1.00000 1.00000 1.00000 Columns 425 through 432: 0.60000 0.50000 0.40000 0.30000 0.20000 0.10000 0.00000 -0.10000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 Columns 433 through 440: -0.20000 -0.30000 -0.40000 -0.50000 -0.60000 -0.70000 -0.80000 -0.90000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 Column 441: -1.00000 1.00000 octave-3.0.3:76> plot(E_g(1,:), E_g(2,:), "o") octave-3.0.3:77> E_g E_g = Columns 1 through 8: 1.00000 0.90000 0.80000 0.70000 0.60000 0.50000 0.40000 0.30000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 Columns 9 through 16: 0.20000 0.10000 0.00000 -0.10000 -0.20000 -0.30000 -0.40000 -0.50000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 Columns 17 through 24: -0.60000 -0.70000 -0.80000 -0.90000 -1.00000 1.00000 0.90000 0.80000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -0.90000 -0.90000 -0.90000 Columns 25 through 32: 0.70000 0.60000 0.50000 0.40000 0.30000 0.20000 0.10000 0.00000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 Columns 33 through 40: -0.10000 -0.20000 -0.30000 -0.40000 -0.50000 -0.60000 -0.70000 -0.80000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 Columns 41 through 48: -0.90000 -1.00000 1.00000 0.90000 0.80000 0.70000 0.60000 0.50000 -0.90000 -0.90000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 Columns 49 through 56: 0.40000 0.30000 0.20000 0.10000 0.00000 -0.10000 -0.20000 -0.30000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 Columns 57 through 64: -0.40000 -0.50000 -0.60000 -0.70000 -0.80000 -0.90000 -1.00000 1.00000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.70000 Columns 65 through 72: 0.90000 0.80000 0.70000 0.60000 0.50000 0.40000 0.30000 0.20000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 Columns 73 through 80: 0.10000 0.00000 -0.10000 -0.20000 -0.30000 -0.40000 -0.50000 -0.60000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 Columns 81 through 88: -0.70000 -0.80000 -0.90000 -1.00000 1.00000 0.90000 0.80000 0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.60000 -0.60000 -0.60000 -0.60000 Columns 89 through 96: 0.60000 0.50000 0.40000 0.30000 0.20000 0.10000 0.00000 -0.10000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 Columns 97 through 104: -0.20000 -0.30000 -0.40000 -0.50000 -0.60000 -0.70000 -0.80000 -0.90000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 Columns 105 through 112: -1.00000 1.00000 0.90000 0.80000 0.70000 0.60000 0.50000 0.40000 -0.60000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 Columns 113 through 120: 0.30000 0.20000 0.10000 0.00000 -0.10000 -0.20000 -0.30000 -0.40000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 Columns 121 through 128: -0.50000 -0.60000 -0.70000 -0.80000 -0.90000 -1.00000 1.00000 0.90000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.40000 -0.40000 Columns 129 through 136: 0.80000 0.70000 0.60000 0.50000 0.40000 0.30000 0.20000 0.10000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 Columns 137 through 144: 0.00000 -0.10000 -0.20000 -0.30000 -0.40000 -0.50000 -0.60000 -0.70000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 Columns 145 through 152: -0.80000 -0.90000 -1.00000 1.00000 0.90000 0.80000 0.70000 0.60000 -0.40000 -0.40000 -0.40000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 Columns 153 through 160: 0.50000 0.40000 0.30000 0.20000 0.10000 0.00000 -0.10000 -0.20000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 Columns 161 through 168: -0.30000 -0.40000 -0.50000 -0.60000 -0.70000 -0.80000 -0.90000 -1.00000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 Columns 169 through 176: 1.00000 0.90000 0.80000 0.70000 0.60000 0.50000 0.40000 0.30000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 Columns 177 through 184: 0.20000 0.10000 0.00000 -0.10000 -0.20000 -0.30000 -0.40000 -0.50000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 Columns 185 through 192: -0.60000 -0.70000 -0.80000 -0.90000 -1.00000 1.00000 0.90000 0.80000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.10000 -0.10000 -0.10000 Columns 193 through 200: 0.70000 0.60000 0.50000 0.40000 0.30000 0.20000 0.10000 0.00000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 Columns 201 through 208: -0.10000 -0.20000 -0.30000 -0.40000 -0.50000 -0.60000 -0.70000 -0.80000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 Columns 209 through 216: -0.90000 -1.00000 1.00000 0.90000 0.80000 0.70000 0.60000 0.50000 -0.10000 -0.10000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 Columns 217 through 224: 0.40000 0.30000 0.20000 0.10000 0.00000 -0.10000 -0.20000 -0.30000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 Columns 225 through 232: -0.40000 -0.50000 -0.60000 -0.70000 -0.80000 -0.90000 -1.00000 1.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.10000 Columns 233 through 240: 0.90000 0.80000 0.70000 0.60000 0.50000 0.40000 0.30000 0.20000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 Columns 241 through 248: 0.10000 0.00000 -0.10000 -0.20000 -0.30000 -0.40000 -0.50000 -0.60000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 Columns 249 through 256: -0.70000 -0.80000 -0.90000 -1.00000 1.00000 0.90000 0.80000 0.70000 0.10000 0.10000 0.10000 0.10000 0.20000 0.20000 0.20000 0.20000 Columns 257 through 264: 0.60000 0.50000 0.40000 0.30000 0.20000 0.10000 0.00000 -0.10000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 Columns 265 through 272: -0.20000 -0.30000 -0.40000 -0.50000 -0.60000 -0.70000 -0.80000 -0.90000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 Columns 273 through 280: -1.00000 1.00000 0.90000 0.80000 0.70000 0.60000 0.50000 0.40000 0.20000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 Columns 281 through 288: 0.30000 0.20000 0.10000 0.00000 -0.10000 -0.20000 -0.30000 -0.40000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 Columns 289 through 296: -0.50000 -0.60000 -0.70000 -0.80000 -0.90000 -1.00000 1.00000 0.90000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.40000 0.40000 Columns 297 through 304: 0.80000 0.70000 0.60000 0.50000 0.40000 0.30000 0.20000 0.10000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 Columns 305 through 312: 0.00000 -0.10000 -0.20000 -0.30000 -0.40000 -0.50000 -0.60000 -0.70000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 Columns 313 through 320: -0.80000 -0.90000 -1.00000 1.00000 0.90000 0.80000 0.70000 0.60000 0.40000 0.40000 0.40000 0.50000 0.50000 0.50000 0.50000 0.50000 Columns 321 through 328: 0.50000 0.40000 0.30000 0.20000 0.10000 0.00000 -0.10000 -0.20000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 Columns 329 through 336: -0.30000 -0.40000 -0.50000 -0.60000 -0.70000 -0.80000 -0.90000 -1.00000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 Columns 337 through 344: 1.00000 0.90000 0.80000 0.70000 0.60000 0.50000 0.40000 0.30000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 Columns 345 through 352: 0.20000 0.10000 0.00000 -0.10000 -0.20000 -0.30000 -0.40000 -0.50000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 Columns 353 through 360: -0.60000 -0.70000 -0.80000 -0.90000 -1.00000 1.00000 0.90000 0.80000 0.60000 0.60000 0.60000 0.60000 0.60000 0.70000 0.70000 0.70000 Columns 361 through 368: 0.70000 0.60000 0.50000 0.40000 0.30000 0.20000 0.10000 0.00000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 Columns 369 through 376: -0.10000 -0.20000 -0.30000 -0.40000 -0.50000 -0.60000 -0.70000 -0.80000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 Columns 377 through 384: -0.90000 -1.00000 1.00000 0.90000 0.80000 0.70000 0.60000 0.50000 0.70000 0.70000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 Columns 385 through 392: 0.40000 0.30000 0.20000 0.10000 0.00000 -0.10000 -0.20000 -0.30000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 Columns 393 through 400: -0.40000 -0.50000 -0.60000 -0.70000 -0.80000 -0.90000 -1.00000 1.00000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.90000 Columns 401 through 408: 0.90000 0.80000 0.70000 0.60000 0.50000 0.40000 0.30000 0.20000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 Columns 409 through 416: 0.10000 0.00000 -0.10000 -0.20000 -0.30000 -0.40000 -0.50000 -0.60000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 Columns 417 through 424: -0.70000 -0.80000 -0.90000 -1.00000 1.00000 0.90000 0.80000 0.70000 0.90000 0.90000 0.90000 0.90000 1.00000 1.00000 1.00000 1.00000 Columns 425 through 432: 0.60000 0.50000 0.40000 0.30000 0.20000 0.10000 0.00000 -0.10000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 Columns 433 through 440: -0.20000 -0.30000 -0.40000 -0.50000 -0.60000 -0.70000 -0.80000 -0.90000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 Column 441: -1.00000 1.00000 octave-3.0.3:78> help quiver -- Function File: quiver (U, V) -- Function File: quiver (X, Y, U, V) -- Function File: quiver (..., S) -- Function File: quiver (..., STYLE) -- Function File: quiver (..., 'filled') -- Function File: quiver (H, ...) -- Function File: H = quiver (...) Plot the `(U, V)' components of a vector field in an `(X, Y)' meshgrid. If the grid is uniform, you can specify X and Y as vectors. If X and Y are undefined they are assumed to be `(1:M, 1:N)' where `[M, N] = size(U)'. The variable S is a scalar defining a scaling factor to use for the arrows of the field relative to the mesh spacing. A value of 0 disables all scaling. The default value is 1. The style to use for the plot can be defined with a line style STYLE in a similar manner to the line styles used with the `plot' command. If a marker is specified then markers at the grid points of the vectors are printed rather than arrows. If the argument 'filled' is given then the markers as filled. The optional return value H provides a list of handles to the the parts of the vector field (body, arrow and marker). [x, y] = meshgrid (1:2:20); quiver (x, y, sin (2*pi*x/10), sin (2*pi*y/10)); See also: plot. /Applications/Octave.app/Contents/Resources/share/octave/3.0.3/m/plot/quiver.m Additional help for built-in functions and operators is available in the on-line version of the manual. Use the command `doc ' to search the manual index. Help and information about Octave is also available on the WWW at http://www.octave.org and via the help@octave.org mailing list. octave-3.0.3:79> u = reshape(E_g(1,:), 21, 21) u = Columns 1 through 8: 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 Columns 9 through 16: 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.90000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.80000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.70000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 0.60000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 0.50000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.40000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.30000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.20000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 Columns 17 through 21: 1.00000 1.00000 1.00000 1.00000 1.00000 0.90000 0.90000 0.90000 0.90000 0.90000 0.80000 0.80000 0.80000 0.80000 0.80000 0.70000 0.70000 0.70000 0.70000 0.70000 0.60000 0.60000 0.60000 0.60000 0.60000 0.50000 0.50000 0.50000 0.50000 0.50000 0.40000 0.40000 0.40000 0.40000 0.40000 0.30000 0.30000 0.30000 0.30000 0.30000 0.20000 0.20000 0.20000 0.20000 0.20000 0.10000 0.10000 0.10000 0.10000 0.10000 0.00000 0.00000 0.00000 0.00000 0.00000 -0.10000 -0.10000 -0.10000 -0.10000 -0.10000 -0.20000 -0.20000 -0.20000 -0.20000 -0.20000 -0.30000 -0.30000 -0.30000 -0.30000 -0.30000 -0.40000 -0.40000 -0.40000 -0.40000 -0.40000 -0.50000 -0.50000 -0.50000 -0.50000 -0.50000 -0.60000 -0.60000 -0.60000 -0.60000 -0.60000 -0.70000 -0.70000 -0.70000 -0.70000 -0.70000 -0.80000 -0.80000 -0.80000 -0.80000 -0.80000 -0.90000 -0.90000 -0.90000 -0.90000 -0.90000 -1.00000 -1.00000 -1.00000 -1.00000 -1.00000 octave-3.0.3:80> ls diary seashells octave-3.0.3:81> size(x) ans = 1 21 octave-3.0.3:82> size(x,1) ans = 1 octave-3.0.3:83> size(x,2) ans = 21 octave-3.0.3:84> u = reshape(E_g(1,:), 21, 21); octave-3.0.3:85> v = reshape(E_g(2,:), 21, 21); octave-3.0.3:86> quiver(XX, YY, u, v) octave-3.0.3:87> diary