## ANGLE Phase Angle Function

Section: Mathematical Functions

### Usage

Compute the phase angle in radians of a complex matrix. The general syntax for its use isp = angle(c)

where `c`

is an `n`

-dimensional array of numerical type.

### Function Internals

For a complex number`x`

, its polar representation is
given by

and we can compute

### Example

Here are some examples of the use of`angle`

in the polar decomposition
of a complex number.
--> x = 3+4*i x = 3.0000 + 4.0000i --> a = abs(x) a = 5 --> t = angle(x) t = 0.9273 --> a*exp(i*t) ans = 3.0000 + 4.0000i

M version contributor: M.W. Vogel 01-30-06