npm package: @stdlib/number-float16-base-from-word
Description: Create a half-precision floating-point number from an unsigned integer corresponding to an IEEE 754 binary representation.
Author: The Stdlib Authors
Latest version: 0.2.1

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<details>
  <summary>
    About stdlib...
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  <p>We believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.</p>
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# fromWord

[![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url] <!-- [![dependencies][dependencies-image]][dependencies-url] -->

> Create a [half-precision floating-point number][ieee754] from an unsigned integer corresponding to an [IEEE 754][ieee754] binary representation.

<section class="installation">

## Installation

```bash
npm install @stdlib/number-float16-base-from-word
```

</section>

<section class="usage">

## Usage

```javascript
var fromWord = require( '@stdlib/number-float16-base-from-word' );
```

#### fromWord( word )

Creates a [half-precision floating-point number][ieee754] from an unsigned integer corresponding to an [IEEE 754][ieee754] binary representation.

```javascript
var word = 15411; // => 0 01111 0000110011

var f16 = fromWord( word ); // when printed, implicitly promoted to float64
// returns 1.0498046875
```

</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 pickArguments = require( '@stdlib/utils-pick-arguments' );
var logEachMap = require( '@stdlib/console-log-each-map' );
var MAX_UINT16 = require( '@stdlib/constants-uint16-max' );
var fromWord = require( '@stdlib/number-float16-base-from-word' );

// Generate an array of random numbers:
var word = discreteUniform( 1000, 0.0, MAX_UINT16 );

// Create half-precision floating-point numbers from unsigned integers...
logEachMap( 'word: %d => float16: %f', word, pickArguments( fromWord, [ 0 ] ) );
```

</section>

<!-- /.examples -->

<!-- C interface documentation. -->

* * *

<section class="c">

## C APIs

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<section class="intro">

</section>

<!-- /.intro -->

<!-- C usage documentation. -->

<section class="usage">

### Usage

```c
#include "stdlib/number/float16/base/from_word.h"
```

#### stdlib_base_float16_from_word( word, \*x )

Creates a [half-precision floating-point number][ieee754] from an unsigned 16-bit integer corresponding to an [IEEE 754][ieee754] binary representation.

```c
#include "stdlib/number/float16/ctor.h"
#include <stdint.h>

uint16_t word = 51648; // => -11.5

stdlib_float16_t x;
stdlib_base_float16_from_word( word, &x );
```

The function accepts the following arguments:

-   **word**: `[in] uint16_t` input word.
-   **x**: `[out] stdlib_float16_t*` destination for a half-precision floating-point number.

```c
void stdlib_base_float16_from_word( const uint16_t word, stdlib_float16_t *x );
```

</section>

<!-- /.usage -->

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

<section class="notes">

</section>

<!-- /.notes -->

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

<section class="examples">

### Examples

```c
#include "stdlib/number/float16/base/from_word.h"
#include "stdlib/number/float16/ctor.h"
#include "stdlib/number/float32/base/to_float16.h"
#include <stdint.h>
#include <stdio.h>

int main( void ) {
    uint16_t word = 51648;

    stdlib_float16_t x;
    int i;
    for ( i = 0; i < 10; i++ ) {
        stdlib_base_float16_from_word( word+(uint16_t)(i*10), &x );
        printf( "word: %u => %f\n", word, stdlib_base_float32_to_float16( x ) );
    }
}
```

</section>

<!-- /.examples -->

</section>

<!-- /.c -->

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<section class="related">

</section>

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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

[![Chat][chat-image]][chat-url]

---

## License

See [LICENSE][stdlib-license].


## Copyright

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

</section>

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[ieee754]: https://en.wikipedia.org/wiki/IEEE_754-1985

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