Common typespecs and functions

Statistical correlation functions between two vectors

Distance functions between two vectors

Functions used as kernel methods for classification, regression and clustering

Linear algebra functions used for vector operations, matrix factorization and matrix transformation.

Common mathematical functions

Special mathematical functions that would make Euler proud

Common statistical functions

Functions used to smoothly bring a sampled signal down to zero at the edges of the sampled region. https://en.wikipedia.org/wiki/Window_function