@stdlib/math-base-special-truncsd
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    0.0.5 • Public • Published

    truncsd

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    Round a numeric value to the nearest number toward zero with n significant figures.

    Installation

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

    Usage

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

    truncsd( x, n[, b] )

    Rounds a numeric value to the nearest number toward zero with n significant figures.

    var v = truncsd( 3.141592653589793, 5 );
    // returns 3.1415
    
    v = truncsd( 3.141592653589793, 1 );
    // returns 3.0
    
    v = truncsd( 12368.0, 2 );
    // returns 12000.0

    The default base is 10 (decimal). To round using a different base, provide a third argument.

    var v = truncsd( 0.0313, 2, 2 );
    // returns 0.03125

    Examples

    var randu = require( '@stdlib/random-base-randu' );
    var truncsd = require( '@stdlib/math-base-special-truncsd' );
    
    var x;
    var y;
    var i;
    
    for ( i = 0; i < 100; i++ ) {
        x = (randu()*10000.0) - 5000.0;
        y = truncsd( x, 5 );
        console.log( 'x: %d. Rounded: %d.', x, 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-truncsd

    Homepage

    stdlib.io

    DownloadsWeekly Downloads

    9

    Version

    0.0.5

    License

    Apache-2.0

    Unpacked Size

    38.8 kB

    Total Files

    9

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    Collaborators

    • stdlib-bot
    • kgryte
    • planeshifter
    • rreusser