npm package: @stdlib/number-float64-base-sub3
Description: Compute the difference of three double-precision floating-point numbers.
Author: The Stdlib Authors
Latest version: 0.1.1

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# sub3

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> Compute the difference of three double-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/number-float64-base-sub3
```

</section>

<section class="usage">

## Usage

```javascript
var sub3 = require( '@stdlib/number-float64-base-sub3' );
```

#### sub3( x, y, z )

Computes the difference of three double-precision floating-point numbers.

```javascript
var v = sub3( 1.0, 5.0, 2.0 );
// returns -6.0

v = sub3( 2.0, 5.0, 2.0 );
// returns -5.0

v = sub3( 0.0, 5.0, 2.0 );
// returns -7.0

v = sub3( -0.0, 0.0, -0.0 );
// returns 0.0

v = sub3( NaN, 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 discreteUniform = require( '@stdlib/random-array-discrete-uniform' );
var logEachMap = require( '@stdlib/console-log-each-map' );
var sub3 = require( '@stdlib/number-float64-base-sub3' );

var x = discreteUniform( 100, -50, 50 );
var y = discreteUniform( 100, -50, 50 );
var z = discreteUniform( 100, -50, 50 );

logEachMap( 'x: %d, y: %d, z: %d => %d', x, y, z, sub3 );
```

</section>

<!-- /.examples -->

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* * *

<section class="c">

## C APIs

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</section>

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<section class="usage">

### Usage

```c
#include "stdlib/number/float64/base/sub3.h"
```

#### stdlib_base_float64_sub3( x, y, z )

Computes the difference of three double-precision floating-point numbers.

```c
double out = stdlib_base_float64_sub3( -5.0, 2.0, 4.0 );
// returns -11.0
```

The function accepts the following arguments:

-   **x**: `[in] double` first input value.
-   **y**: `[in] double` second input value.
-   **z**: `[in] double` third input value.

```c
double stdlib_base_float64_sub3( const double x, const double y, const double z );
```

</section>

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</section>

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<section class="examples">

### Examples

```c
#include "stdlib/number/float64/base/sub3.h"
#include <stdio.h>

int main( void ) {
    const double x[] = { 3.14, -3.14, 0.0, 0.0/0.0 };
    const double y[] = { 3.14, -3.14, -0.0, 0.0/0.0 };
    const double z[] = { 2.0, -3.0, -0.0, 0.0/0.0 };

    double out;
    int i;
    for ( i = 0; i < 4; i++ ) {
        out = stdlib_base_float64_sub3( x[ i ], y[ i ], z[ i ] );
        printf( "%lf - %lf - %lf = %lf\n", x[ i ], y[ i ], z[ i ], out );
    }
}
```

</section>

<!-- /.examples -->

</section>

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* * *

## 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].

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---

## License

See [LICENSE][stdlib-license].


## Copyright

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

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