the entire wiki with video and photo galleries

find something interesting to watch in seconds

find something interesting to watch in seconds

YouTube Videos – Hilbert space and Related Articles

Completeness means that if a particle moves along the broken path (in blue) travelling a finite total distance, then the particle has a well-defined net displacement (in orange).

Spherical harmonics, an orthonormal basis for the Hilbert space of square-integrable functions on the sphere, shown graphed along the radial direction