Compute the hypotenuse of a single-precision floating-point number.
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> Compute the [hypotenuse][hypotenuse] of two single-precision floating-point numbers.
``bash`
npm install @stdlib/math-base-special-fast-hypotf
`javascript`
var hypotf = require( '@stdlib/math-base-special-fast-hypotf' );
#### hypotf( x, y )
Computes the [hypotenuse][hypotenuse] of two single-precision floating-point numbers.
`javascript`
var h = hypotf( -5.0, 12.0 );
// returns 13.0
- For a sufficiently large x and/or y, computing the hypotenuse will overflow.
`javascript`
var h = hypotf( 1.0e38, 1.0e38 );
// returns Infinity
Similarly, for sufficiently small x and/or y, computing the hypotenuse will underflow.
`javascript`
var h = hypotf( 1.0e-45, 1.0e-45 );
// returns 0.0
`javascript
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`
#include "stdlib/math/base/special/fast/hypotf.h"
#### stdlib_base_fast_hypotf( x, y )
Computes the hypotenuse of two single-precision floating-point numbers.
`c`
float h = stdlib_base_fast_hypotf( 5.0f, 12.0f );
// returns 13.0f
The function accepts the following arguments:
- x: [in] float input value.[in] float
- y: input value.
`c`
float stdlib_base_fast_hypotf( const float x, const float y );
`c
#include "stdlib/math/base/special/fast/hypotf.h"
#include
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 );
}
}
`
*
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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[hypotenuse]: https://en.wikipedia.org/wiki/Pythagorean_theorem