floorf
Round a single-precision floating-point numeric value toward negative infinity.
Installation
npm install @stdlib/math-base-special-floorf
Alternatively,
- To load the package in a website via a
script
tag without installation and bundlers, use the ES Module available on theesm
branch. - If you are using Deno, visit the
deno
branch. - For use in Observable, or in browser/node environments, use the Universal Module Definition (UMD) build available on the
umd
branch.
The branches.md file summarizes the available branches and displays a diagram illustrating their relationships.
Usage
var floorf = require( '@stdlib/math-base-special-floorf' );
floorf( x )
Rounds a single-precision floating-point numeric
value toward negative infinity.
var v = floorf( -4.2 );
// returns -5.0
v = floorf( 9.99999 );
// returns 9.0
v = floorf( 0.0 );
// returns 0.0
v = floorf( NaN );
// returns NaN
Examples
var randu = require( '@stdlib/random-base-randu' );
var floorf = require( '@stdlib/math-base-special-floorf' );
var x;
var i;
for ( i = 0; i < 100; i++ ) {
x = (randu()*100.0) - 50.0;
console.log( 'floorf(%d) = %d', x, floorf( x ) );
}
C APIs
Usage
#include "stdlib/math/base/special/floorf.h"
stdlib_base_floorf( x )
Rounds a single-precision floating-point number toward negative infinity.
float y = stdlib_base_floorf( 3.14f );
// returns 3.0
The function accepts the following arguments:
- x:
[in] float
input value.
float stdlib_base_floor( const float x );
Examples
#include "stdlib/math/base/special/floorf.h"
#include <stdio.h>
int main( void ) {
const float x[] = { 3.14f, -3.14f, 0.0f, 0.0f/0.0f };
float y;
int i;
for ( i = 0; i < 4; i++ ) {
y = stdlib_base_floorf( x[ i ] );
printf( "floorf(%f) = %f\n", x[ i ], y );
}
}
See Also
@stdlib/math-base/special/ceilf
: round a single-precision floating-point number toward positive infinity.@stdlib/math-base/special/floor
: round a double-precision floating-point number toward negative infinity.
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
License
See LICENSE.
Copyright
Copyright © 2016-2023. The Stdlib Authors.