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 );
}

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

License

See LICENSE.

Copyright

Copyright © 2016-2024. The Stdlib Authors.