# Dirichlet kernel (In mathematical analysis)

## Description

The Dirichlet kernel is a collection of functions and its importance comes from its relation to Fourier series, that decomposes any periodic function or periodic signal into the sum of a (possibly infinite) set of simple oscillating functions.

Related formulas## Variables

D_{n} | Dirichlet kernel (dimensionless) |

n | Number of times (dimensionless) |

x | Variable (X-coordinate) (radians) |