using System;
using org.matheval;
using System.Collections.Generic;
public class Program
{
public static void Main()
Expression expr = new Expression("MAX(a)");
expr.Bind("a", new List<Decimal> { 10m, 9.6m, 135, 724.2m, 6m, -4m });
Decimal value = expr.Eval<Decimal>(); // return 724.2
}