sqrt

Returns the non-negative square root of x.

It fails and sets GLib.errno to EDOM , if x is negative.

Example: Square root (double):

public static int main (string[] args) {
	//               /----
	// sqrt (4) =  \/  4   = 2
	//

	// Output: ``sqrt (4.0) = 2.000000``
	double res = Math.sqrt (4.0);
	print ("sqrt (4.0) = %lf\n", res);
	return 0;
}

valac --pkg glib-2.0 -X -lm GLib.Math.sqrt.vala

Parameters:

x	A numeric value.