npm package: @stdlib/math-base-ops-subf
Description: Subtract two single-precision floating-point numbers.
Author: The Stdlib Authors
Latest version: 0.2.2

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# subf

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> Subtract two single-precision floating-point numbers.

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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-ops-subf
```

</section>

<section class="usage">

## Usage

```javascript
var subf = require( '@stdlib/math-base-ops-subf' );
```

#### subf( x, y )

Subtracts two single-precision floating-point numbers.

```javascript
var v = subf( -1.0, 5.0 );
// returns -6.0

v = subf( 2.0, 5.0 );
// returns -3.0

v = subf( 0.0, 5.0 );
// returns -5.0

v = subf( -0.0, 0.0 );
// returns -0.0

v = subf( NaN, NaN );
// returns NaN
```

</section>

<!-- /.usage -->

<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->

<section class="notes">

</section>

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<!-- Package usage examples. -->

<section class="examples">

## Examples

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

```javascript
var rand = require( '@stdlib/random-base-discrete-uniform' );
var subf = require( '@stdlib/math-base-ops-subf' );

var x;
var y;
var i;

for ( i = 0; i < 100; i++ ) {
    x = rand( -50, 50 );
    y = rand( -50, 50 );
    console.log( '%d - %d = %d', x, y, subf( x, y ) );
}
```

</section>

<!-- /.examples -->

<!-- C interface documentation. -->

* * *

<section class="c">

## C APIs

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<section class="intro">

</section>

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<!-- C usage documentation. -->

<section class="usage">

### Usage

```c
#include "stdlib/math/base/ops/subf.h"
```

#### stdlib_base_subf( x, y )

Subtracts two single-precision floating-point numbers.

```c
float v = stdlib_base_sub( -5.0f, 2.0f );
// returns -7.0f
```

The function accepts the following arguments:

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

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

</section>

<!-- /.usage -->

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<section class="notes">

</section>

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<!-- C API usage examples. -->

<section class="examples">

### Examples

```c
#include "stdlib/math/base/ops/subf.h"
#include <stdio.h>

int main( void ) {
    const float x[] = { 3.14f, -3.14f, 0.0f, 0.0f/0.0f };
    const float y[] = { 3.14f, -3.14f, -0.0f, 0.0f/0.0f };

    float z;
    int i;
    for ( i = 0; i < 4; i++ ) {
        z = stdlib_base_subf( x[ i ], y[ i ] );
        printf( "%f - %f = %f\n", x[ i ], y[ i ], z );
    }
}
```

</section>

<!-- /.examples -->

</section>

<!-- /.c -->

<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->

<section class="related">

* * *

## See Also

-   <span class="package-name">[`@stdlib/math-base/ops/addf`][@stdlib/math/base/ops/addf]</span><span class="delimiter">: </span><span class="description">compute the sum of two single-precision floating-point numbers.</span>
-   <span class="package-name">[`@stdlib/math-base/ops/divf`][@stdlib/math/base/ops/divf]</span><span class="delimiter">: </span><span class="description">divide two single-precision floating-point numbers.</span>
-   <span class="package-name">[`@stdlib/math-base/ops/mulf`][@stdlib/math/base/ops/mulf]</span><span class="delimiter">: </span><span class="description">multiply two single-precision floating-point numbers.</span>
-   <span class="package-name">[`@stdlib/math-base/ops/sub`][@stdlib/math/base/ops/sub]</span><span class="delimiter">: </span><span class="description">subtract two double-precision floating-point numbers.</span>

</section>

<!-- /.related -->

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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; 2016-2024. The Stdlib [Authors][stdlib-authors].

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<!-- <related-links> -->

[@stdlib/math/base/ops/addf]: https://www.npmjs.com/package/@stdlib/math-base-ops-addf

[@stdlib/math/base/ops/divf]: https://www.npmjs.com/package/@stdlib/math-base-ops-divf

[@stdlib/math/base/ops/mulf]: https://www.npmjs.com/package/@stdlib/math-base-ops-mulf

[@stdlib/math/base/ops/sub]: https://www.npmjs.com/package/@stdlib/math-base-ops-sub

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