toFloat32

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

Installation

npm install @stdlib/number-float16-base-to-float32

Usage

var float16ToFloat32 = require( '@stdlib/number-float16-base-to-float32' );

float16ToFloat32( x )

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

var float64ToFloat16 = require( '@stdlib/number-float64-base-to-float16' );

var y = float16ToFloat32( float64ToFloat16( 1.337 ) );
// returns 1.3369140625

Examples

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

#include "stdlib/number/float16/base/to_float32.h"

stdlib_base_float16_to_float32( x )

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

#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.

float stdlib_base_float16_to_float32( const stdlib_float16_t x );

Examples

#include "stdlib/number/float16/base/to_float32.h"
#include "stdlib/number/float16/ctor.h"
#include <stdint.h>
#include <stdio.h>

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, 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 © 2016-2026. The Stdlib Authors.