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    @stdlib/math-base-special-ahaversin
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    0.0.6 • Public • Published

    Archaversine

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    Compute the inverse half-value versed sine.

    The inverse half-value versed sine is defined as

    Inverse half-value versed sine.

    Installation

    npm install @stdlib/math-base-special-ahaversin

    Usage

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

    ahaversin( x )

    Computes the inverse half-value versed sine.

    var v = ahaversin( 0.0 );
    // returns 0.0
    
    v = ahaversin( 1.0 );
    // returns ~3.1416
    
    v = ahaversin( 0.5 );
    // returns ~1.5708

    If x < 0, x > 1, or x is NaN, the function returns NaN.

    var v = ahaversin( 1.5 );
    // returns NaN
    
    v = ahaversin( -3.14 );
    // returns NaN
    
    v = ahaversin( NaN );
    // returns NaN

    Examples

    var linspace = require( '@stdlib/array-linspace' );
    var ahaversin = require( '@stdlib/math-base-special-ahaversin' );
    
    var x = linspace( 0.0, 1.0, 100 );
    var i;
    
    for ( i = 0; i < x.length; i++ ) {
        console.log( ahaversin( 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.

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    License

    See LICENSE.

    Copyright

    Copyright © 2016-2021. The Stdlib Authors.

    Install

    npm i @stdlib/math-base-special-ahaversin

    Homepage

    stdlib.io

    DownloadsWeekly Downloads

    22

    Version

    0.0.6

    License

    Apache-2.0

    Unpacked Size

    45.2 kB

    Total Files

    10

    Last publish

    Collaborators

    • stdlib-bot
    • kgryte
    • planeshifter
    • rreusser