Plotting a function with 2 dependent variables

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Abinav
Abinav 2021-1-7
评论： Star Strider 2021-1-7
Hi,
I have a function a variable (z) which is dependent on two other variables (x,y). The function looks like z = f(x,y)
x ranges from 0 to 100 and y ranges from 0 to 1. I use linspace to divide both x and y into 100 values.Through nested loop substitution, I get 100 x 100 values for z.
How do I plot z against x and y? If I use plot3 I get an error saying dimensions don't match.
Thanks

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Star Strider
Star Strider 2021-1-7
Use the mesh or surf functions. Other options are contour, and waterfall, depending on the result you want.

更多回答（1 个）

Mischa Kim
Mischa Kim 2021-1-7
Use meshgrid instead:
[x,y] = meshgrid(-10:0.1:10);
z = sin(x).*cos(y);
plot3(x,y,z)

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