@stdlib/math-base-special-floor
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    0.0.7 • Public • Published

    Floor

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    Round a double-precision floating-point number toward negative infinity.

    Installation

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

    Usage

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

    floor( x )

    Rounds a double-precision floating-point number toward negative infinity.

    var v = floor( -4.2 );
    // returns -5.0
    
    v = floor( 9.99999 );
    // returns 9.0
    
    v = floor( 0.0 );
    // returns 0.0
    
    v = floor( NaN );
    // returns NaN

    Examples

    var randu = require( '@stdlib/random-base-randu' );
    var floor = require( '@stdlib/math-base-special-floor' );
    
    var x;
    var i;
    
    for ( i = 0; i < 100; i++ ) {
        x = (randu()*100.0) - 50.0;
        console.log( 'floor(%d) = %d', x, floor( x ) );
    }

    C APIs

    Installation

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

    Usage

    #include "stdlib/math/base/special/floor.h"

    stdlib_base_floor( x )

    Rounds a double-precision floating-point number toward negative infinity.

    double y = stdlib_base_floor( 3.14 );
    // returns 3.0

    The function accepts the following arguments:

    • x: [in] double input value.
    double stdlib_base_floor( const double x );

    Examples

    #include "stdlib/math/base/special/floor.h"
    #include <stdio.h>
    
    int main() {
        double x[] = { 3.14, -3.14, 0.0, 0.0/0.0 };
    
        double y;
        int i;
        for ( i = 0; i < 4; i++ ) {
            y = stdlib_base_floor( x[ i ] );
            printf( "floor(%lf) = %lf\n", x[ i ], 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-floor

    Homepage

    stdlib.io

    DownloadsWeekly Downloads

    5,546

    Version

    0.0.7

    License

    Apache-2.0

    Unpacked Size

    48.1 kB

    Total Files

    16

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    Collaborators

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