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Floor

$NPM version$ $Build Status$ $Coverage Status$

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

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( void ) {
    const 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.

Floor

Installation

Usage

floor( x )

Examples

C APIs

Usage

stdlib_base_floor( x )

Examples

See Also

Notice

Community

License

Copyright

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