public override FunctionElement SetVariableValue(string name, FunctionElement e)
{
Function newF = new Function();
this.variables.ForEach(v => newF += v.SetVariableValue(name, e));
//newF.Degree = this.Degree;
//newF.Functions = new List<MathFunctions.IMathFunction>(this.Functions);
newF.ForceAddFunctions(this);
foreach (var mf in newF.MathFunctions)
{
for (int i = 0; i < mf.Item2.Length; i++)
{
mf.Item2[i] = mf.Item2[i].SetVariableValue(name, e);
}
}
return newF.Recalc();
}