public void AddValue(double time, double val)
{
TimeValueNode toAdd = new TimeValueNode(time, val);
toAdd.next = head;
head = toAdd;
}
public Variable(string Name, Equation DiffEquation, double startingValue, double time)
{
this.Name = Name;
this.DiffEquation = DiffEquation;
head = new TimeValueNode(time, startingValue);
}