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

    uimul

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    Perform C-like multiplication of two unsigned 32-bit integers.

    Installation

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

    Usage

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

    uimul( a, b )

    Performs C-like multiplication of two unsigned 32-bit integers.

    var v = uimul( 10>>>0, 4>>>0 );
    // returns 40
    
    v = uimul( 2147483648>>>0, 5>>>0 ); // 2^31 * 5 = 10737418240 => 32-bit integer overflow
    // returns 2147483648

    Notes

    • The function emulates C-like multiplication of two unsigned 32-bit integers.

    Examples

    var discreteUniform = require( '@stdlib/random-base-discrete-uniform' ).factory;
    var UINT32_MAX = require( '@stdlib/constants-uint32-max' );
    var uimul = require( '@stdlib/math-base-special-uimul' );
    
    var randi;
    var a;
    var b;
    var y;
    var i;
    
    randi = discreteUniform( 0, UINT32_MAX );
    
    for ( i = 0; i < 100; i++ ) {
        a = randi()>>>0;
        b = randi()>>>0;
        y = uimul( a, b );
        console.log( '%d x %d = %d', a, b, y );
    }

    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-uimul

    Homepage

    stdlib.io

    DownloadsWeekly Downloads

    2,690

    Version

    0.0.6

    License

    Apache-2.0

    Unpacked Size

    38.7 kB

    Total Files

    9

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