Cube Root

Compute the cube root of a single-precision floating-point number.

Usage

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

cbrtf( x )

Computes the cube root of a single-precision floating-point number.

var v = cbrtf( 64.0 );
// returns 4.0

v = cbrtf( 27.0 );
// returns 3.0

v = cbrtf( 0.0 );
// returns 0.0

v = cbrtf( -0.0 );
// returns -0.0

v = cbrtf( -9.0 );
// returns ~-2.08

v = cbrtf( NaN );
// returns NaN

Examples

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

var opts = {
    'dtype': 'float32'
};
var x = uniform( 100, -100.0, 100.0, opts );

logEachMap( 'cbrt(%0.4f) = %0.4f', x, cbrtf );

---

C APIs

Usage

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

stdlib_base_cbrtf( x )

Computes the cube root of a single-precision floating-point number.

float y = stdlib_base_cbrtf( 27.0f );
// returns 3.0f

The function accepts the following arguments:

• x: [in] float input value.

float stdlib_base_cbrtf( const float x );

Examples

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

int main( void ) {
    const float x[] = { 3.14f, 9.00f, 0.0f, 0.0f/0.0f };

    float y;
    int i;
    for ( i = 0; i < 4; i++ ) {
        y = stdlib_base_cbrtf( x[ i ] );
        printf( "cbrt(%f) = %f\n", x[ i ], y );
    }
}

---

See Also

• @stdlib/math/base/special/cbrt: compute the cube root of a double-precision floating-point number.
• @stdlib/math/base/special/sqrtf: compute the principal square root of a single-precision floating-point number.