# Experimenting with Surfaces of Revolution

- Author:
- Irina Boyadzhiev

This applet explores the surface of revolution obtained by rotating a curve about any axes in 3D.

- Enter the parametric equation of the curve
and*x= f(t)*), enter also an interval for**y=g(t**.**t** - Drag the sliders for the polar angle
, and the angle**θ**between the z-axis and the axis of rotation (the yellow line) to select different positions for that axis.**φ** - See the special cases for the axis of rotation: in any of the coordinate planes and on the coordinate axes.