How do I plot 3d graphs using just matrices Values

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allbert
allbert 2018-4-25
评论： allbert 2018-4-25
A = {1;2;5;7;10;20};
B = {1;2;5;7;10;20}';
[X Y] = meshgrid(A,B);
Z = { 1 8 18 21 25 26; 1 8 18 21 25 26; 1 8 18 21 25 26; 1 8 18 21 25 26; 1 8 18 21 25 26; 1 8 18 21 25 26};
surf(X,Y,Z);
  2 个评论
allbert
allbert 2018-4-25
It shows me this error
hh = matlab.graphics.chart.primitive.Surface(allargs{:});
Jan
Jan 2018-4-25
This does not look like an error message. Do you get anything more on the screen?

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采纳的回答

Jan
Jan 2018-4-25
The curly braces are used to create cell arrays. You want numerical arrays and need square brackets:
A = [1;2;5;7;10;20];
B = [1;2;5;7;10;20]';
[X Y] = meshgrid(A,B);
Z = [1 8 18 21 25 26; 1 8 18 21 25 26; 1 8 18 21 25 26; ...
1 8 18 21 25 26; 1 8 18 21 25 26; 1 8 18 21 25 26];
surf(X,Y,Z);
And suddenly it works :-)

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