private void RightToLeft()
{
foreach (var summand in RightSide)
{
summand.Multiplier *= -1;
}
LeftSide = LeftSide.Concat(RightSide).ToList();
RightSide.Clear();
}
/// <summary>
/// Returns an array of the names all of the elements used in this equation.
/// The array represents a set, so the items are in an arbitrary order and no item is repeated.
/// </summary>
public List <string> GetElements()
{
var result = new List <string>();
var bothSides = LeftSide.Concat(RightSide);
foreach (var item in bothSides)
{
item.GetElements(result);
}
return(result);
}