# hypotf
> Compute the [hypotenuse][hypotenuse] avoiding overflow and underflow (single-precision).
## Usage
```javascript
var hypotf = require( '@stdlib/math/base/special/hypotf' );
```
#### hypotf( x, y )
Computes the [hypotenuse][hypotenuse] avoiding overflow and underflow (single-precision).
```javascript
var h = hypotf( -5.0, 12.0 );
// returns 13.0
h = hypotf( -0.0, -0.0 );
// returns +0.0
```
If either argument is `NaN`, the function returns `NaN`.
```javascript
var h = hypotf( NaN, 12.0 );
// returns NaN
h = hypotf( 5.0, NaN );
// returns NaN
```
## Examples
```javascript
var randu = require( '@stdlib/random/base/randu' );
var round = require( '@stdlib/math/base/special/round' );
var hypotf = require( '@stdlib/math/base/special/hypotf' );
var x;
var y;
var h;
var i;
for ( i = 0; i < 100; i++ ) {
x = round( randu()*100.0 ) - 50.0;
y = round( randu()*100.0 ) - 50.0;
h = hypotf( x, y );
console.log( 'h(%d,%d) = %d', x, y, h );
}
```
* * *
## C APIs
### Usage
```c
#include "stdlib/math/base/special/hypotf.h
```
#### stdlib_base_hypotf( x, y )
Computes the hypotenuse avoiding overflow and underflow (single-precision).
```c
float h = stdlib_base_hypotf( 5.0f, 12.0f );
// returns 13.0f
```
The function accepts the following arguments:
- **x**: `[in] float` input value.
- **y**: `[in] float` input value.
```c
float stdlib_base_hypotf( const float x, const float y );
```
### Examples
```c
#include "stdlib/math/base/special/hypotf.h"
#include
int main() {
float x[] = { 3.0f, 4.0f, 5.0f, 12.0f };
float y;
int i;
for ( i = 0; i < 4; i += 2 ) {
y = stdlib_base_hypotf( x[ i ], x[ i+1 ] );
printf( "hypot(%f, %f) = %f\n", x[ i ], x[ i+1 ], y );
}
}
```
[hypotenuse]: http://en.wikipedia.org/wiki/Pythagorean_theorem