Category
page 1Reflection (mathematics)
reflection
mapping from a Euclidean space to itself that is an isometry with a hyperplane as a set of fixed points
reflection symmetry
symmetry with respect to a plane, when the shape does not change by reflecting all of its part from a mirror plane
dynamical billiards
dynamical system abstract an ideal game of billiards, with elastic collisions off boundaries
Illumination problem
mathematical problem
Alhazen's problem
mathematical problem in geometrical optics