Noosphere Possibilities Maximized

    @stdlib/math-base-special-cfloor
    TypeScript icon, indicating that this package has built-in type declarations

    0.0.6 • Public • Published

    Floor

    NPM version Build Status Coverage Status dependencies

    Round a complex number toward negative infinity.

    Installation

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

    Usage

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

    cfloor( [out,] re, im )

    Rounds a complex number comprised of a real component re and an imaginary component im toward negative infinity.

    var v = cfloor( -4.2, 5.5 );
    // returns [ -5.0, 5.0 ]
    
    v = cfloor( 9.99999, 0.1 );
    // returns [ 9.0, 0.0 ]
    
    v = cfloor( 0.0, 0.0 );
    // returns [ 0.0, 0.0 ]
    
    v = cfloor( NaN, NaN );
    // returns [ NaN, NaN ]

    By default, the function returns real and imaginary components as a two-element array. To avoid unnecessary memory allocation, the function supports providing an output (destination) object.

    var Float32Array = require( '@stdlib/array-float32' );
    
    var out = new Float32Array( 2 );
    
    var v = cfloor( out, -4.2, 5.5 );
    // returns <Float32Array>[ -5.0, 5.0 ]
    
    var bool = ( v === out );
    // returns true

    Examples

    var Complex128 = require( '@stdlib/complex-float64' );
    var randu = require( '@stdlib/random-base-randu' );
    var real = require( '@stdlib/complex-real' );
    var imag = require( '@stdlib/complex-imag' );
    var cfloor = require( '@stdlib/math-base-special-cfloor' );
    
    var re;
    var im;
    var z;
    var o;
    var w;
    var i;
    
    for ( i = 0; i < 100; i++ ) {
        re = ( randu()*100.0 ) - 50.0;
        im = ( randu()*100.0 ) - 50.0;
        z = new Complex128( re, im );
        o = cfloor( real(z), imag(z) );
        w = new Complex128( o[ 0 ], o[ 1 ] );
        console.log( 'floor(%s) = %s', z.toString(), w.toString() );
    }

    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.

    Community

    Chat


    License

    See LICENSE.

    Copyright

    Copyright © 2016-2021. The Stdlib Authors.

    Install

    npm i @stdlib/math-base-special-cfloor

    Homepage

    stdlib.io

    DownloadsWeekly Downloads

    7

    Version

    0.0.6

    License

    Apache-2.0

    Unpacked Size

    39.7 kB

    Total Files

    10

    Last publish

    Collaborators

    • stdlib-bot
    • kgryte
    • planeshifter
    • rreusser