MMX achievements

A rotation is a circular movement of an object around a center (or point) of rotation.

Mathematically, a rotation is a rigid body movement which, unlike a translation, keeps a point fixed.

Matrix multiplications always have the origin as a fixed point.

The end result of any sequence of rotations of any object in 3D about a fixed point is always equivalent to a rotation about an axis.

Complete level 11.

Table tennis paddles are manufactured with different surface characteristics to allow the player to impart a greater or lesser amount of spin to the ball.

Complete level 13.

Complete level 15.

Complete level 14.

Complete level 12.

Euler rotations provide an alternative description of a rotation.

Most planets in our solar system, including Earth, spin in the same direction as they orbit the Sun.