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

    Dirac Delta

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    Evaluate the Dirac delta function.

    The Dirac delta function may be loosely defined as

    Dirac delta function.

    and is constrained to satisfy the identity

    Dirac delta function integral.

    Note that the Dirac delta function is not a function in the traditional sense, as any real-valued function which is zero everywhere except at a single point, must have an integral equal to 0.

    Installation

    npm install @stdlib/math-base-special-dirac-delta

    Usage

    var diracDelta = require( '@stdlib/math-base-special-dirac-delta' );

    diracDelta( x )

    Evaluates the Dirac delta function.

    var v = diracDelta( 0.0 );
    // returns Infinity
    
    v = diracDelta( 3.14 );
    // returns 0.0
    
    v = diracDelta( NaN );
    // returns NaN

    Examples

    var linspace = require( '@stdlib/array-linspace' );
    var diracDelta = require( '@stdlib/math-base-special-dirac-delta' );
    
    var x = linspace( -1.0, 1.0, 101 );
    var i;
    
    for ( i = 0; i < x.length; i++ ) {
        console.log( 'dirac(%d) = %d', x[ i ], diracDelta( 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-dirac-delta

    Homepage

    stdlib.io

    DownloadsWeekly Downloads

    18

    Version

    0.0.6

    License

    Apache-2.0

    Unpacked Size

    49.2 kB

    Total Files

    11

    Last publish

    Collaborators

    • stdlib-bot
    • kgryte
    • planeshifter
    • rreusser