How to find paramenters in Surface() function for 3D objects?
Can somebody help me understand how to find the parameters for the Surface() function in 3D?
For example, I need to draw part of sphere, and I use
Surface(cos(x)sin(y), sin(x)sin(y), 2+cos(y), x, 0, pi/2, y, 0, pi/2)
So how to calculate first three parameters of the function?