Modulus function.
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> [Modulus function][modulus-function].
The [modulus function][modulus-function] is defined as
where x is the dividend and y is the divisor.
``bash`
npm install @stdlib/math-base-special-fmod
`javascript`
var fmod = require( '@stdlib/math-base-special-fmod' );
#### fmod( x, y )
Evaluates the [modulus function][modulus-function].
`javascript
var v = fmod( 8.0, 3.0 );
// returns 2.0
v = fmod( 9.0, 3.0 );
// returns 0.0
v = fmod( 8.9, 3.0 );
// returns 2.9
v = fmod( NaN, 3.0 );
// returns NaN
v = fmod( 5.0, NaN );
// returns NaN
v = fmod( NaN, NaN );
// returns NaN
`
`javascript
var discreteUniform = require( '@stdlib/random-array-discrete-uniform' );
var logEachMap = require( '@stdlib/console-log-each-map' );
var fmod = require( '@stdlib/math-base-special-fmod' );
var opts = {
'dtype': 'float64'
};
var x = discreteUniform( 100, 0, 10, opts );
var y = discreteUniform( 100, -5, 5, opts );
logEachMap( '%d%%%d = %d', x, y, fmod );
`
*
`c`
#include "stdlib/math/base/special/fmod.h"
#### stdlib_base_fmod( x, y )
Evaluates the modulus function.
`c
double out = stdlib_base_fmod( 8.9, 3.0 );
// returns 2.9
out = stdlib_base_fmod( 4.0, 2.0 );
// returns 0.0
`
The function accepts the following arguments:
- x: [in] double dividend.[in] double
- y: divisor.
`c`
double stdlib_base_fmod( const double x, const double y );
`c
#include "stdlib/math/base/special/fmod.h"
#include
#include
int main( void ) {
double out;
double x;
double y;
int i;
for ( i = 0; i < 100; i++ ) {
x = ( ( (double)rand() / (double)RAND_MAX ) * 10.0 );
y = ( ( (double)rand() / (double)RAND_MAX ) * 10.0 ) - 5.0;
out = stdlib_base_fmod( x, y );
printf( "fmod(%lf, %lf) = %lf\n", x, y, out );
}
}
`
*
This package is part of [stdlib][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][stdlib], see the main project [repository][stdlib].
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---
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[es-module]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules
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[modulus-function]: https://en.wikipedia.org/wiki/Remainder