sub
Subtract two double-precision floating-point numbers.
Usage
var sub = require( '@stdlib/math/base/ops/sub' );
sub( x, y )
Subtracts two double-precision floating-point numbers.
var v = sub( -1.0, 5.0 );
// returns -6.0
v = sub( 2.0, 5.0 );
// returns -3.0
v = sub( 0.0, 5.0 );
// returns -5.0
v = sub( -0.0, 0.0 );
// returns -0.0
v = sub( NaN, NaN );
// returns NaN
Examples
var rand = require( '@stdlib/random/base/discrete-uniform' );
var sub = require( '@stdlib/math/base/ops/sub' );
var x;
var y;
var i;
for ( i = 0; i < 100; i++ ) {
x = rand( -50, 50 );
y = rand( -50, 50 );
console.log( '%d - %d = %d', x, y, sub( x, y ) );
}
C APIs
Usage
#include "stdlib/math/base/ops/sub.h"
stdlib_base_sub( x, y )
Subtracts two double-precision floating-point numbers.
double v = stdlib_base_sub( -5.0, 2.0 );
// returns -7.0
The function accepts the following arguments:
- x:
[in] double
first input value. - y:
[in] double
second input value.
double stdlib_base_sub( const double x, const double y );
Examples
#include "stdlib/math/base/ops/sub.h"
#include <stdio.h>
int main() {
double x[] = { 3.14, -3.14, 0.0, 0.0/0.0 };
double y[] = { 3.14, -3.14, -0.0, 0.0/0.0 };
double z;
int i;
for ( i = 0; i < 4; i++ ) {
z = stdlib_base_sub( x[ i ], y[ i ] );
printf( "%lf - %lf = %lf\n", x[ i ], y[ i ], z );
}
}