hypotf

Compute the hypotenuse of two single-precision floating-point numbers.

Installation

npm install @stdlib/math-base-special-fast-hypotf

Usage

var hypotf = require( '@stdlib/math-base-special-fast-hypotf' );

hypotf( x, y )

Computes the hypotenuse of two single-precision floating-point numbers.

var h = hypotf( -5.0, 12.0 );
// returns 13.0

Notes

• For a sufficiently large x and/or y, computing the hypotenuse will overflow.

  var h = hypotf( 1.0e38, 1.0e38 );
  // returns Infinity

  Similarly, for sufficiently small x and/or y, computing the hypotenuse will underflow.

  var h = hypotf( 1.0e-45, 1.0e-45 );
  // returns 0.0

Examples

var discreteUniform = require( '@stdlib/random-array-discrete-uniform' );
var logEachMap = require( '@stdlib/console-log-each-map' );
var hypotf = require( '@stdlib/math-base-special-fast-hypotf' );

var opts = {
    'dtype': 'float32'
};
var x = discreteUniform( 100, -50, 50, opts );
var y = discreteUniform( 100, -50, 50, opts );

logEachMap( 'h(%d,%d) = %0.4f', x, y, hypotf );

C APIs

Usage

#include "stdlib/math/base/special/fast/hypotf.h"

stdlib_base_fast_hypotf( x, y )

Computes the hypotenuse of two single-precision floating-point numbers.

float h = stdlib_base_fast_hypotf( 5.0f, 12.0f );
// returns 13.0f

The function accepts the following arguments:

• x: [in] float input value.
• y: [in] float input value.

float stdlib_base_fast_hypotf( const float x, const float y );

Examples

#include "stdlib/math/base/special/fast/hypotf.h"
#include <stdio.h>

int main( void ) {
    const float x[] = { 3.0f, 4.0f, 5.0f, 12.0f };

    float y;
    int i;
    for ( i = 0; i < 4; i += 2 ) {
        y = stdlib_base_fast_hypotf( x[ i ], x[ i+1 ] );
        printf( "hypot(%f, %f) = %f\n", x[ i ], x[ i+1 ], y );
    }
}

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 © 2016-2026. The Stdlib Authors.