# @stdlib/math-base-special-hacoversin Release 0.0.5

Compute the half-value coversed sine.

Keywords
stdlib, stdmath, mathematics, math, hacoversin, hacoversine, versed sine, half-value, coversed, sinus versus, hacoversinus, hcv, hacov, semicoversin, cohaversine, versed, sine, sin, trig, trigonometry, radians, angle, javascript, node, node-js, nodejs, sinus-versus, versed-sine
Apache-2.0
Install
``` npm install @stdlib/math-base-special-hacoversin@0.0.5 ```

# Hacoversine

Compute the half-value coversed sine.

The half-value coversed sine is defined as

## Installation

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

## Usage

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

#### hacoversin( x )

Computes the half-value coversed sine (in radians).

```var v = hacoversin( 0.0 );
// returns 0.5

v = hacoversin( 3.141592653589793/2.0 );
// returns 0.0

v = hacoversin( -3.141592653589793/6.0 );
// returns 0.75```

## Examples

```var linspace = require( '@stdlib/array-linspace' );
var TWO_PI = require( '@stdlib/constants-float64-two-pi' );
var hacoversin = require( '@stdlib/math-base-special-hacoversin' );

var x = linspace( 0.0, TWO_PI, 100 );
var i;

for ( i = 0; i < x.length; i++ ) {
console.log( hacoversin( x[ i ] ) );
}```

## 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 