sqrtpif

Compute the principal square root of the product of π and a positive single-precision floating-point number.

Installation

npm install @stdlib/math-base-special-sqrtpif

Usage

var sqrtpif = require( '@stdlib/math-base-special-sqrtpif' );

sqrtpif( x )

Computes the principal square root of the product of π and a positive single-precision floating-point number.

var v = sqrtpif( 4.0 );
// returns ~3.5449

v = sqrtpif( 10.0 );
// returns ~5.60499

v = sqrtpif( 0.0 );
// returns 0.0

v = sqrtpif( NaN );
// returns NaN

For negative numbers, the principal square root is not defined.

var v = sqrtpif( -4.0 );
// returns NaN

Examples

var discreteUniform = require( '@stdlib/random-array-discrete-uniform' );
var logEachMap = require( '@stdlib/console-log-each-map' );
var sqrtpif = require( '@stdlib/math-base-special-sqrtpif' );

var opts = {
    'dtype': 'float32'
};
var x = discreteUniform( 100, 0, 100, opts );

logEachMap( 'sqrtpif(%d) = %0.4f', x, sqrtpif );

C APIs

Usage

#include "stdlib/math/base/special/sqrtpif.h"

stdlib_base_sqrtpif( x )

Computes the principal square root of the product of π and a positive single-precision floating-point number.

float x = stdlib_base_sqrtpif( 4.0f );
// returns ~3.5449f

x = stdlib_base_sqrtpif( 10.0f );
// returns ~5.60499f

The function accepts the following arguments:

• x: [in] float input value.

float stdlib_base_sqrtpif( const float x );

Examples

#include "stdlib/math/base/special/sqrtpif.h"
#include <stdlib.h>
#include <stdio.h>

int main( void ) {
    const float x[] = { 4.0f, 10.0f, 3.14f, -3.14f, 0.0f, 0.0f / 0.0f };

    float v;
    int i;
    for ( i = 0; i < 6; i++ ) {
        v = stdlib_base_sqrtpif( x[ i ] );
        printf( "sqrtpif(%f) = %f", 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.