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# toFloat32 [![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url] > Convert a [half-precision floating-point number][half-precision-floating-point-format] to the nearest [single-precision floating-point number][ieee754].
## Installation ```bash npm install @stdlib/number-float16-base-to-float32 ```
## Usage ```javascript var float16ToFloat32 = require( '@stdlib/number-float16-base-to-float32' ); ``` #### float16ToFloat32( x ) Converts a [half-precision floating-point number][half-precision-floating-point-format] to the nearest [single-precision floating-point number][ieee754]. ```javascript var float64ToFloat16 = require( '@stdlib/number-float64-base-to-float16' ); var y = float16ToFloat32( float64ToFloat16( 1.337 ) ); // returns 1.3369140625 ```
## Examples ```javascript var float64ToFloat16 = require( '@stdlib/number-float64-base-to-float16' ); var uniform = require( '@stdlib/random-array-uniform' ); var map = require( '@stdlib/array-base-map' ); var naryFunction = require( '@stdlib/utils-nary-function' ); var pickArguments = require( '@stdlib/utils-pick-arguments' ); var logEachMap = require( '@stdlib/console-log-each-map' ); var float16ToFloat32 = require( '@stdlib/number-float16-base-to-float32' ); // Generate an array of random numbers: var f64 = uniform( 100, 0.0, 100.0 ); // Convert each value to a half-precision floating-point number: var f16 = map( f64, naryFunction( float64ToFloat16, 1 ) ); // Convert each half-precision floating-point number to the nearest single-precision floating-point number: logEachMap( 'float64: %f => float16: %f => float32: %f', f64, f16, pickArguments( float16ToFloat32, [ 1 ] ) ); ```
* * *
## C APIs
### Usage ```c #include "stdlib/number/float16/base/to_float32.h" ``` #### stdlib_base_float16_to_float32( x ) Converts a [half-precision floating-point number][half-precision-floating-point-format] to the nearest [single-precision floating-point number][ieee754]. ```c #include "stdlib/number/float16/ctor.h" stdlib_float16_t v = stdlib_float16_from_bits( 51648 ); // => -11.5 float x = stdlib_base_float16_to_float32( v ); ``` The function accepts the following arguments: - **x**: `[in] stdlib_float16_t` half-precision floating-point number. ```c float stdlib_base_float16_to_float32( const stdlib_float16_t x ); ```
### Examples ```c #include "stdlib/number/float16/base/to_float32.h" #include "stdlib/number/float16/ctor.h" #include #include int main( void ) { const stdlib_float16_t x[] = { stdlib_float16_from_bits( 51648 ), // -11.5 stdlib_float16_from_bits( 18880 ) // 11.5 }; float v; int i; for ( i = 0; i < 2; i++ ) { v = stdlib_base_float16_to_float32( x[ i ] ); printf( "float16 bits: %u => float32: %f\n", stdlib_float16_to_bits( x[ i ] ), v ); } } ```
* * * ## 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 © 2016-2026. The Stdlib [Authors][stdlib-authors].
[npm-image]: http://img.shields.io/npm/v/@stdlib/number-float16-base-to-float32.svg [npm-url]: https://npmjs.org/package/@stdlib/number-float16-base-to-float32 [test-image]: https://github.com/stdlib-js/number-float16-base-to-float32/actions/workflows/test.yml/badge.svg?branch=v0.1.2 [test-url]: https://github.com/stdlib-js/number-float16-base-to-float32/actions/workflows/test.yml?query=branch:v0.1.2 [coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/number-float16-base-to-float32/main.svg [coverage-url]: https://codecov.io/github/stdlib-js/number-float16-base-to-float32?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-float16-base-to-float32/tree/deno [deno-readme]: https://github.com/stdlib-js/number-float16-base-to-float32/blob/deno/README.md [umd-url]: https://github.com/stdlib-js/number-float16-base-to-float32/tree/umd [umd-readme]: https://github.com/stdlib-js/number-float16-base-to-float32/blob/umd/README.md [esm-url]: https://github.com/stdlib-js/number-float16-base-to-float32/tree/esm [esm-readme]: https://github.com/stdlib-js/number-float16-base-to-float32/blob/esm/README.md [branches-url]: https://github.com/stdlib-js/number-float16-base-to-float32/blob/main/branches.md [stdlib-license]: https://raw.githubusercontent.com/stdlib-js/number-float16-base-to-float32/main/LICENSE [ieee754]: https://en.wikipedia.org/wiki/IEEE_754-1985 [half-precision-floating-point-format]: https://en.wikipedia.org/wiki/Half-precision_floating-point_format