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    @stdlib/math-base-special-gamma-delta-ratio
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    0.0.6 • Public • Published

    Gamma Delta Ratio

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    Compute the ratio of two gamma functions.

    Installation

    npm install @stdlib/math-base-special-gamma-delta-ratio

    Usage

    var gammaDeltaRatio = require( '@stdlib/math-base-special-gamma-delta-ratio' );

    gammaDeltaRatio( z, delta )

    Computes the ratio of two gamma functions. Specifically, the function evaluates Γ( z ) / Γ( z + delta ).

    var y = gammaDeltaRatio( 2.0, 3.0 );
    // returns ~0.042
    
    y = gammaDeltaRatio( 4.0, 0.5 );
    // returns ~0.516
    
    y = gammaDeltaRatio( 100.0, 0.0 );
    // returns 1.0

    Examples

    var randu = require( '@stdlib/random-base-randu' );
    var gammaDeltaRatio = require( '@stdlib/math-base-special-gamma-delta-ratio' );
    
    var delta;
    var z;
    var i;
    
    for ( i = 0; i < 100; i++ ) {
        z = randu()*10.0;
        delta = randu()*10.0;
        console.log( 'gamma( %d ) / gamma( %d + %d ) = %d', z, z, delta, gammaDeltaRatio( z, delta ) );
    }

    See Also


    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 © 2016-2022. The Stdlib Authors.

    Install

    npm i @stdlib/math-base-special-gamma-delta-ratio

    Homepage

    stdlib.io

    DownloadsWeekly Downloads

    4,276

    Version

    0.0.6

    License

    Apache-2.0 AND BSL-1.0

    Unpacked Size

    42.9 kB

    Total Files

    10

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    Collaborators

    • stdlib-bot
    • kgryte
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    • rreusser