using uCalcSoftware;

var uc = new uCalc();

// Note that x is defined in the default instance
// while f(x) is defined in the uc instance.
var MyVar = new uCalc.Item("Variable: x = 123");
var MyFunc = new uCalc.Item(uc, "Function: f(x) = x^2");

Console.WriteLine(uCalc.DefaultInstance.Eval("x"));
Console.WriteLine(uc.Eval("f(5)"));

MyVar.Release();
MyFunc.Release();