3D Surface of Rotation around x-axis

This example demonstrates the 3D surface generated by rotating the function f(x) around the x-axis over the interval low<x<up. Key mathematical concepts involved include rotational solids in calculus, surface generation, and spatial geometry. The construction utilizes GeoGebra's Surface command for generating the surface, Textfield for annotations, and InputBox1 and text1 objects for user input parameters upper and low, as well as the function g and rotation angle α. Suitable for high school and above students studying solid geometry and rotational solids in calculus.