Function plotting using mesh and meshgrid in matlab

Question

I have to represent this function: c = y * sin(x) using mesh. Where:

x = -10:10
y = 0:3:30

My code looks like this:

[X,Y] = meshgrid(x,y);
C = Y*sin(X)';
mesh(X,Y,C);

But when I run it I get the following error:

"Error using mesh (line 71) Data dimensions must agree.".

How do I fix this? I'm not sure how to plot a function where the variables are multiplied.

Answer 1

I don't have a MATLAB licence to test it. But I guess the problem is that you are using the * operator, which does a matrix matrix multiplication. You need to do an element-wise multiplication using .* , and remove the transpose.

C = Y.*sin(X);