MATLAB: How can i 3d plot z=x*y

Question

I tried this but didn't work [x,y]=meshgrid(-5:5) z=x*y Plot3(x,y,z)

Answer 1

Try this:

z = x .* y;

You need to do ‘element-wise’ multiplication, and adding the ‘dot operator’, changing (*) to (.*). will do this.

See the documentation on Array vs. Matrix Operations (link) for details.