maxabs
Return the maximum absolute value.
Usage
var maxabs = require( '@stdlib/math/base/special/maxabs' );
maxabs( x, y )
Returns the maximum absolute value.
var v = maxabs( -4.2, 3.14 );
// returns 4.2
v = maxabs( +0.0, -0.0 );
// returns +0.0
If any argument is NaN
, the function returns NaN
.
var v = maxabs( 4.2, NaN );
// returns NaN
v = maxabs( NaN, 3.14 );
// returns NaN
Examples
var randu = require( '@stdlib/random/base/randu' );
var maxabs = require( '@stdlib/math/base/special/maxabs' );
var x;
var y;
var v;
var i;
for ( i = 0; i < 100; i++ ) {
x = ( randu()*1000.0 ) - 500.0;
y = ( randu()*1000.0 ) - 500.0;
v = maxabs( x, y );
console.log( 'maxabs(%d,%d) = %d', x, y, v );
}
C APIs
Usage
#include "stdlib/math/base/special/maxabs.h"
stdlib_base_maxabs( x, y )
Returns the maximum absolute value.
double out = stdlib_base_maxabs( -4.2, 3.14 );
// returns 4.2
out = stdlib_base_maxabs( 0.0, -0.0 );
// returns +0.0
The function accepts the following arguments:
- x:
[in] double
input value. - y:
[in] double
input value.
double stdlib_base_maxabs( const double x, const double y );
Examples
#include "stdlib/math/base/special/maxabs.h"
#include <stdlib.h>
#include <stdio.h>
int main( void ) {
double x;
double y;
double v;
int i;
for ( i = 0; i < 100; i++ ) {
x = ( ( (double)rand() / (double)RAND_MAX ) * 1000.0 ) - 500.0;
y = ( ( (double)rand() / (double)RAND_MAX ) * 1000.0 ) - 500.0;
v = stdlib_base_maxabs( x, y );
printf( "x: %lf, y: %lf, maxabs(x, y): %lf\n", x, y, v );
}
}