Return the maximum absolute value.
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> Return the maximum absolute value.
``bash`
npm install @stdlib/math-base-special-maxabs
`javascript`
var maxabs = require( '@stdlib/math-base-special-maxabs' );
#### maxabs( x, y )
Returns the maximum absolute value.
`javascript
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.
`javascript
var v = maxabs( 4.2, NaN );
// returns NaN
v = maxabs( NaN, 3.14 );
// returns NaN
`
`javascript
var uniform = require( '@stdlib/random-array-uniform' );
var logEachMap = require( '@stdlib/console-log-each-map' );
var maxabs = require( '@stdlib/math-base-special-maxabs' );
var opts = {
'dtype': 'float64'
};
var x = uniform( 100, -500.0, 500.0, opts );
var y = uniform( 100, -500.0, 500.0, opts );
logEachMap( 'maxabs(%0.4f,%0.4f) = %0.4f', x, y, maxabs );
`
*
`c`
#include "stdlib/math/base/special/maxabs.h"
#### stdlib_base_maxabs( x, y )
Returns the maximum absolute value.
`c
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.[in] double
- y: input value.
`c`
double stdlib_base_maxabs( const double x, const double y );
`c
#include "stdlib/math/base/special/maxabs.h"
#include
#include
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 );
}
}
`
*
- [@stdlib/math-base/special/max][@stdlib/math/base/special/max]: return the maximum value.
- [@stdlib/math-base/special/minabs][@stdlib/math/base/special/minabs]: return the minimum absolute value.
*
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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Copyright © 2016-2026. The Stdlib [Authors][stdlib-authors].
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[umd]: https://github.com/umdjs/umd
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[deno-url]: https://github.com/stdlib-js/math-base-special-maxabs/tree/deno
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[@stdlib/math/base/special/max]: https://www.npmjs.com/package/@stdlib/math-base-special-max
[@stdlib/math/base/special/minabs]: https://www.npmjs.com/package/@stdlib/math-base-special-minabs