npm package: @stdlib/math-base-special-nanmaxf
Description: Return the maximum value of two single-precision floating-point numbers, ignoring NaN.
Author: The Stdlib Authors
Latest version: 0.1.1

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# nanmaxf

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> Return the maximum value of two single-precision floating-point numbers, ignoring NaN.

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<section class="intro">

</section>

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<!-- Package usage documentation. -->

<section class="installation">

## Installation

```bash
npm install @stdlib/math-base-special-nanmaxf
```

</section>

<section class="usage">

## Usage

```javascript
var nanmaxf = require( '@stdlib/math-base-special-nanmaxf' );
```

#### nanmaxf( x, y )

Returns the maximum value of two single-precision floating-point numbers, ignoring NaN.

```javascript
var v = nanmaxf( 4.2, 3.14 );
// returns 4.2

v = nanmaxf( +0.0, -0.0 );
// returns +0.0
```

If any argument is `NaN`, the function returns the other operand.

```javascript
var v = nanmaxf( 4.2, NaN );
// returns 4.2

v = nanmaxf( NaN, 3.14 );
// returns 3.14
```

If both arguments are `NaN`, the function returns `NaN`.

```javascript
var v = nanmaxf( NaN, NaN );
// returns NaN
```

</section>

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<section class="notes">

</section>

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<section class="examples">

## Examples

<!-- eslint no-undef: "error" -->

```javascript
var nanmaxf = require( '@stdlib/math-base-special-nanmaxf' );

var m = nanmaxf( 3.0, 4.0 );
console.log( m );
// => 4.0

m = nanmaxf( NaN, 4.0 );
console.log( m );
// => 4.0

m = nanmaxf( 4.0, NaN );
console.log( m );
// => 4.0

m = nanmaxf( NaN, NaN );
console.log( m );
// => NaN
```

</section>

<!-- /.examples -->

<!-- C interface documentation. -->

* * *

<section class="c">

## C APIs

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<section class="intro">

</section>

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<section class="usage">

### Usage

```c
#include "stdlib/math/base/special/nanmaxf.h"
```

#### stdlib_base_nanmaxf( x, y )

Returns the maximum value of two single-precision floating-point numbers, ignoring NaN.

```c
float out = stdlib_base_nanmaxf( 4.2f, 3.14f );
// returns 4.2f

out = stdlib_base_nanmaxf( 4.14f, 0.0f / 0.0f );
// returns 4.14f
```

The function accepts the following arguments:

-   **x**: `[in] float` input value.
-   **y**: `[in] float` input value.

```c
float stdlib_base_nanmaxf( const float x, const float y );
```

</section>

<!-- /.usage -->

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<section class="notes">

</section>

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<section class="examples">

### Examples

```c
#include "stdlib/math/base/special/nanmaxf.h"
#include <stdio.h>

int main( void ) {
    const float x[] = { 1.0f, 0.45f, -0.89f, 0.0f / 0.0f, -0.78f, -0.22f, 0.66f, 0.11f, -0.55f, 0.0f };
    const float y[] = { -0.22f, 0.66f, 0.0f, -0.55f, 0.33f, 1.0f, 0.0f / 0.0f, 0.11f, 0.45f, -0.78f };

    float v;
    int i;
    for ( i = 0; i < 10; i++ ) {
        v = stdlib_base_nanmaxf( x[ i ], y[ i ] );
        printf( "x[ %d ]: %f, y[ %d ]: %f, nanmaxf( x[ %d ], y[ %d ] ): %f\n", i, x[ i ], i, y[ i ], i, i, v );
    }
}
```

</section>

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</section>

<!-- /.c -->

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<section class="main-repo" >

* * *

## Notice

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].

#### Community

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---

## License

See [LICENSE][stdlib-license].


## Copyright

Copyright &copy; 2016-2026. The Stdlib [Authors][stdlib-authors].

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