/// <summary>
/// It's work like this
/// x^2 = y
/// this = x^2
/// other = y
/// this.ReverseAllFunctionsTo(other)
/// => this = x
/// other = y ^ -2
/// It change current instance!
/// </summary>
/// <param name="e"></param>
/// <returns>Item1 - modified original object, Item2 - modified e param</returns>
public Tuple<FunctionElement, FunctionElement> ReverseAllFunctionsTo(FunctionElement e)
{
FunctionElement e1;
if (this.IsLeaf())
{
e1 = this.ToLeaf();
}
else
{
e1 = this.Clone() as FunctionElement;
}
var e2 = e.Clone() as FunctionElement;
for (int i = e1.MathFunctions.Count - 1; i >= 0; i--)
{
if (!e1.MathFunctions[i].Item1.HasReverse())
{
break;
}
List<FunctionElement> pars = new List<FunctionElement>();
pars.Add(e2);
pars.AddRange(e1.MathFunctions[i].Item2);
e2 = e1.MathFunctions[i].Item1.CalculateReverse(pars.ToArray());
//e2 = e2.ApplyFunction(e1.MathFunctions[i].Item1.FunctionName, e1.MathFunctions[i].Item2);
e1.MathFunctions.RemoveAt(i);
}
Function e11 = new Function(e1);
return new Tuple<FunctionElement,FunctionElement>(new Function(e1), e2);
}
public override FunctionElement SetVariableValue(string name, FunctionElement value)
{
if (value.IsDouble())
{
return this.SetVariableValue(name, value.ToDouble());
}
if (this.Name.Equals(name))
{
var temp = value.Clone() as FunctionElement;
temp.ForceAddFunctions(this);
return temp;
}
return this.Clone() as FunctionElement;
}
