Compute the principal square root of a double-precision floating-point number.
The principal square root is defined as
var sqrt = require( '@stdlib/math/base/special/sqrt' );Computes the principal square root of a double-precision floating-point number.
var v = sqrt( 4.0 );
// returns 2.0
v = sqrt( 9.0 );
// returns 3.0
v = sqrt( 0.0 );
// returns 0.0
v = sqrt( NaN );
// returns NaNFor negative numbers, the principal square root is not defined.
var v = sqrt( -4.0 );
// returns NaNvar discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
var logEachMap = require( '@stdlib/console/log-each-map' );
var sqrt = require( '@stdlib/math/base/special/sqrt' );
var opts = {
'dtype': 'float64'
};
var x = discreteUniform( 100, 0, 100, opts );
logEachMap( 'sqrt(%d) = %0.4f', x, sqrt );#include "stdlib/math/base/special/sqrt.h"Computes the principal square root of a double-precision floating-point number.
double y = stdlib_base_sqrt( 9.0 );
// returns 3.0The function accepts the following arguments:
- x:
[in] doubleinput value.
double stdlib_base_sqrt( const double x );#include "stdlib/math/base/special/sqrt.h"
#include <stdio.h>
int main( void ) {
const double x[] = { 3.14, 9.0, 0.0, 0.0/0.0 };
double y;
int i;
for ( i = 0; i < 4; i++ ) {
y = stdlib_base_sqrt( x[ i ] );
printf( "sqrt(%lf) = %lf\n", x[ i ], y );
}
}@stdlib/math/base/special/cbrt: compute the cube root of a double-precision floating-point number.@stdlib/math/base/special/rsqrt: compute the reciprocal square root of a double-precision floating-point number.