This model of the cubohemioctahedron is very beautiful, isn't it?

The steepest descent method is one way to solve optimization problems.

Based on the Air Pollution Control Law, factories must strengthen the management of exhaust gases.

The Riemann sum is a method for approximately calculating the integral of a function.

This 立方半八面體 is one of the shapes in geometry.

The great icosihemidodecahedron is a cube with a very complex shape.

This is a model of a great icosahemidodecahedron.