Create a single-precision floating-point number from an unsigned integer corresponding to an IEEE 754 binary representation.
npm install @stdlib/number-float32-base-from-wordWe 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. The library is fully decomposable, being architected in such a way that you can swap out and mix and match APIs and functionality to cater to your exact preferences and use cases. When you use stdlib, you can be absolutely certain that you are using the most thorough, rigorous, well-written, studied, documented, tested, measured, and high-quality code out there. To join us in bringing numerical computing to the web, get started by checking us out on GitHub, and please consider financially supporting stdlib. We greatly appreciate your continued support!
About stdlib...
[![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url]
> Create a [single-precision floating-point number][ieee754] from an unsigned integer corresponding to an [IEEE 754][ieee754] binary representation.
``bash`
npm install @stdlib/number-float32-base-from-word
`javascript`
var fromWordf = require( '@stdlib/number-float32-base-from-word' );
#### fromWordf( word )
Creates a [single-precision floating-point number][ieee754] from an unsigned integer corresponding to an [IEEE 754][ieee754] binary representation.
`javascript
var word = 1068180177; // => 0 01111111 01010110010001011010001
var f32 = fromWordf( word ); // when printed, implicitly promoted to float64
// returns 1.3370000123977661
`
- The equivalent of this function in C/C++,
`c`
float fromWordf(unsigned int x) {
return (float)&x;
}
`javascript
var randu = require( '@stdlib/random-base-randu' );
var round = require( '@stdlib/math-base-special-round' );
var MAX_UINT32 = require( '@stdlib/constants-uint32-max' );
var fromWordf = require( '@stdlib/number-float32-base-from-word' );
var word;
var f32;
var i;
// Create single-precision floating-point numbers from unsigned integers...
for ( i = 0; i < 1000; i++ ) {
word = round( randu()*MAX_UINT32 );
f32 = fromWordf( word );
console.log( 'word: %d => float32: %d', word, f32 );
}
`
*
`c`
#include "stdlib/number/float32/base/from_word.h"
#### stdlib_base_float32_from_word( word, \*x )
Creates a [single-precision floating-point number][ieee754] from an unsigned 32-bit integer corresponding to an [IEEE 754][ieee754] binary representation.
`c
#include
uint32_t word = 1078523331;
float x;
stdlib_base_float32_from_word( word, &x );
`
The function accepts the following arguments:
- word: [in] uint32_t input word.[out] float*
- x: destination for a single-precision floating-point number.
`c`
void stdlib_base_float32_from_word( const uint32_t word, float *x );
`c
#include "stdlib/number/float32/base/from_word.h"
#include
#include
int main( void ) {
uint32_t word = 1078523331;
float x;
int i;
for ( i = 0; i < 10; i++ ) {
stdlib_base_float32_from_word( word+(uint32_t)(i*10), &x );
printf( "word: %u => %f\n", word, x );
}
}
`
*
- [@stdlib/number-float64/base/from-words][@stdlib/number/float64/base/from-words]: create a double-precision floating-point number from a higher order word and a lower order word.
*
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]
---
See [LICENSE][stdlib-license].
Copyright © 2016-2026. The Stdlib [Authors][stdlib-authors].
[npm-image]: http://img.shields.io/npm/v/@stdlib/number-float32-base-from-word.svg
[npm-url]: https://npmjs.org/package/@stdlib/number-float32-base-from-word
[test-image]: https://github.com/stdlib-js/number-float32-base-from-word/actions/workflows/test.yml/badge.svg?branch=v0.2.3
[test-url]: https://github.com/stdlib-js/number-float32-base-from-word/actions/workflows/test.yml?query=branch:v0.2.3
[coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/number-float32-base-from-word/main.svg
[coverage-url]: https://codecov.io/github/stdlib-js/number-float32-base-from-word?branch=main
[chat-image]: https://img.shields.io/badge/zulip-join_chat-brightgreen.svg
[chat-url]: https://stdlib.zulipchat.com
[stdlib]: https://github.com/stdlib-js/stdlib
[stdlib-authors]: https://github.com/stdlib-js/stdlib/graphs/contributors
[umd]: https://github.com/umdjs/umd
[es-module]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules
[deno-url]: https://github.com/stdlib-js/number-float32-base-from-word/tree/deno
[deno-readme]: https://github.com/stdlib-js/number-float32-base-from-word/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/number-float32-base-from-word/tree/umd
[umd-readme]: https://github.com/stdlib-js/number-float32-base-from-word/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/number-float32-base-from-word/tree/esm
[esm-readme]: https://github.com/stdlib-js/number-float32-base-from-word/blob/esm/README.md
[branches-url]: https://github.com/stdlib-js/number-float32-base-from-word/blob/main/branches.md
[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/number-float32-base-from-word/main/LICENSE
[ieee754]: https://en.wikipedia.org/wiki/IEEE_754-1985
[@stdlib/number/float64/base/from-words]: https://www.npmjs.com/package/@stdlib/number-float64-base-from-words