how to 3D grid plot with fine spacing

2013 2 26
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when i try to plot the following code the plot doesnt show anything: code:
h=10^-9;
N=40;
x=linspace(0,N*h,N);
y=linspace(0,N*h,N);
u=ones(N,N);
surf(x,y,u)
but when i change the grid to be less i.e. h=10^-5 then it would plot it perfectly what can i do about this please help

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回答（1 个）

Sean de Wolski
Sean de Wolski 2013-2-26

0 个投票

Your_stuff
axis tight %tighten the axes to the data.

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Sean de Wolski
Sean de Wolski 2013-2-27
Well it worked for me!
Run this:
h=10^-9;
N=40;
x=linspace(0,N*h,N);
y=linspace(0,N*h,N);
u=ones(N,N);
surf(x,y,u)
axis tight

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youu hooo
2013-2-26

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