@stdlib/number-float64-base-to-float32

What is @stdlib/number-float64-base-to-float32?

@stdlib/number-float64-base-to-float32 is a utility package that provides functionality to convert 64-bit floating-point numbers (float64) to 32-bit floating-point numbers (float32). This can be useful in scenarios where memory efficiency is critical, or when interfacing with systems that require 32-bit floating-point numbers.

What are @stdlib/number-float64-base-to-float32's main functionalities?

Convert float64 to float32

This feature allows you to convert a 64-bit floating-point number to a 32-bit floating-point number. The code sample demonstrates converting the number π (pi) from float64 to float32.

const toFloat32 = require('@stdlib/number-float64-base-to-float32');
const float64 = 3.141592653589793;
const float32 = toFloat32(float64);
console.log(float32); // 3.1415927410125732

Other packages similar to @stdlib/number-float64-base-to-float32

typedarray-to-buffer

While not directly converting float64 to float32, 'typedarray-to-buffer' can be used to handle various typed arrays, including Float32Array. It is useful for converting typed arrays to Node.js buffers, which can then be manipulated or converted as needed.

README

toFloat32

Convert a double-precision floating-point number to the nearest single-precision floating-point number.

Installation

npm install @stdlib/number-float64-base-to-float32

Usage

var float64ToFloat32 = require( '@stdlib/number-float64-base-to-float32' );

float64ToFloat32( x )

Converts a double-precision floating-point number to the nearest single-precision floating-point number.

var y = float64ToFloat32( 1.337 );
// returns 1.3370000123977661

Notes

• This function may be used as a polyfill for the ES2015 built-in Math.fround.

Examples

var randu = require( '@stdlib/random-base-randu' );
var float64ToFloat32 = require( '@stdlib/number-float64-base-to-float32' );

var f64;
var f32;
var i;

// Convert random double-precision floating-point numbers to the nearest single-precision floating-point number...
for ( i = 0; i < 1000; i++ ) {
    f64 = randu() * 100.0;
    f32 = float64ToFloat32( f64 );
    console.log( 'float64: %d => float32: %d', f64, f32 );
}

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Notice

This package is part of 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, see the main project repository.

Community

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License

See LICENSE.

Copyright

Copyright © 2016-2022. The Stdlib Authors.

Changelog

0.0.7 (2022-07-06)

No changes reported for this release.

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