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Problem Solving Library for Java

There is a newer version: 0.1.19

package org.psjava.formula;

import org.psjava.ds.Collection;
import org.psjava.ds.numbersystrem.DivisableNumberSystem;

public class Average {

	public static  T calc(Collection a, DivisableNumberSystem ns) {
		T sum = Sum.calc(ns, a);
		return ns.divide(sum, ns.getByInt(a.size()));
	}

	private Average() {
	}
}