Method avg

MathParser/src/com/aghajari/math/Functions.java:159–161

(Double... a)

    }

    public static double avg(Double... a) {
        return sum(a) / a.length;
    }

    public static double sigma(MathParser parser, String variableName, String exp, double from, double to) throws MathParserException {
        return sigma(parser, variableName, exp, from, to, 1.0);