411 REFERENCE · Wikibooks
Linear Algebra and the C Language/a0np
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Display a matrix as an indexed color image
thumb|Display a matrix as an indexed color image with octave
Copy/Paste into the octave window
% imagesc(A):
%
% Display a matrix as an indexed color image.
% Matrix 2x2 -------------
A = [3 4;
4 2]
figure(1)
imagesc(A) % Display a matrix as an indexed color image
axis square, title('A')
%%
% Matrix 3x3 ---------------------
B = [ 1 3 5 ;
3 2 4 ;
5 4 3 ]
figure(2)
imagesc(B) % Display a matrix as an indexed color image
axis square,title('B')
%%
% Matrix 3x2 ---------------------
C = [ 1 3 ;
3 2 ;
5 4 ]
figure(3)
imagesc(C) % Display a matrix as an indexed color image
axis square,title('C')
%%