Maths.java

package org.citygml4j.util.internal.jama;

public class Maths {

	/** sqrt(a^2 + b^2) without under/overflow.
	@param a first parameter
	@param b second parameter
	@return double
	**/

	public static double hypot(double a, double b) {
		double r;
		if (Math.abs(a) > Math.abs(b)) {
			r = b/a;
			r = Math.abs(a)*Math.sqrt(1+r*r);
		} else if (b != 0) {
			r = a/b;
			r = Math.abs(b)*Math.sqrt(1+r*r);
		} else {
			r = 0.0;
		}
		return r;
	}
}