Error using surf - Z must be a matrix, not a scalar or vector.

Hello, I am using matlab for optimization problem. I have to find the calculated values for maximum volume, radius and height and plot 3D surface between them

radius = sqrt(given_amount/2*3*3.14);

height = ((given_amount)/2*3.14*radius) - radius;

maximum_volume = (length*width*radius)/2 - 3.14*radius*radius*radius;

surf(radius,height,maximum_volume);

It says that z must be a vector.

Answer 1

[Cris LaPierre]

Wow, this is a popular homework question this week.

"It says that z must be a vector."

It likely doesn't say Z has to be a vector. It probably says "Z must be a matrix, not a scalar or vector."

I'll get you started by pointing you to this post.

And, of course, send you to the documentation for surf.