File "Maths.php"

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<?php

/**
 * 	@package JAMA
 *
 * 	Pythagorean Theorem:
 *
 * 	a = 3
 * 	b = 4
 * 	r = sqrt(square(a) + square(b))
 * 	r = 5
 *
 * 	r = sqrt(a^2 + b^2) without under/overflow.
 */
function hypo($a, $b) {
    if (abs($a) > abs($b)) {
        $r = $b / $a;
        $r = abs($a) * sqrt(1 + $r * $r);
    } elseif ($b != 0) {
        $r = $a / $b;
        $r = abs($b) * sqrt(1 + $r * $r);
    } else {
        $r = 0.0;
    }
    return $r;
}

//	function hypo()


/**
 *	Mike Bommarito's version.
 *	Compute n-dimensional hyotheneuse.
 *
function hypot() {
	$s = 0;
	foreach (func_get_args() as $d) {
		if (is_numeric($d)) {
			$s += pow($d, 2);
		} else {
			throw new PHPExcel_Calculation_Exception(JAMAError(ArgumentTypeException));
		}
	}
	return sqrt($s);
}
*/