Method gcd

MathParser/src/com/aghajari/math/Functions.java:254–259

(Double... x)

    }

    public static double gcd(Double... x) {
        double result = 0;
        for (double value : x)
            result = gcd(value, result);
        return result;
    }

    private static double gcd(double a, double b) {
        double x = Math.abs(a);