Nahi Pata Mujhe!

# npm

## @stdlib/math-base-special-cpolar 0.0.5 • Public • Published

# polar

Compute the absolute value and phase of a complex number.

## Installation

`npm install @stdlib/math-base-special-cpolar`

## Usage

`var cpolar = require( '@stdlib/math-base-special-cpolar' );`

#### cpolar( [out,] re, im )

Computes the absolute value and phase of a complex number comprised of a real component `re` and an imaginary component `im`.

```var o = cpolar( 5.0, 3.0 );
// returns [ ~5.83, ~0.5404 ]```

By default, the function returns real and imaginary components as a two-element `array`. To avoid unnecessary memory allocation, the function supports providing an output (destination) object.

```var Float64Array = require( '@stdlib/array-float64' );

var out = new Float64Array( 2 );

var o = cpolar( out, 5.0, 3.0 );
// returns <Float64Array>[ ~5.83, ~0.5404 ]

var bool = ( o === out );
// returns true```

## Examples

```var Complex128 = require( '@stdlib/complex-float64' );
var randu = require( '@stdlib/random-base-randu' );
var round = require( '@stdlib/math-base-special-round' );
var real = require( '@stdlib/complex-real' );
var imag = require( '@stdlib/complex-imag' );
var cpolar = require( '@stdlib/math-base-special-cpolar' );

var re;
var im;
var z;
var o;
var i;

for ( i = 0; i < 100; i++ ) {
re = round( randu()*100.0 ) - 50.0;
im = round( randu()*100.0 ) - 50.0;
z = new Complex128( re, im );
o = cpolar( real(z), imag(z) );
z = z.toString();
console.log( 'abs(%s) = %d. arg(%s) = %d', z, o, z, o );
}```

## Notice

This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.

#### Community ### Install

`npm i @stdlib/math-base-special-cpolar`

### Repository

github.com/stdlib-js/math-base-special-cpolar

stdlib.io

8

0.0.5