# pdfRayleigh¶

## Purpose¶

Computes the probability density function of the Rayleigh distribution.

## Format¶

p = pdfRayleigh(x, b)
Parameters
• x (NxK matrix or an Nx1 vector or scalar) – x must be greater than 0.

• b (NxK matrix, Nx1 vector or scalar) – Scale parameter, ExE conformable with x. b must be greater than 0.

Returns

p (NxK matrix, Nx1 vector or scalar) – the probability density function of the Rayleigh distribution evaluated at x.

## Remarks¶

The probability density function of the Rayleigh distribution is defined as

$f(x) = \frac{x}{b^2}exp⁡(\frac{−x^2}{2b^2})$

Functions cdfRayleighinv()