public static _Polynom operator -(_Polynom data1, _Polynom data2)
{
if (!ValidateForOperation(data1, data2))
{
throw new ArgumentNullException();
}
_Polynom result = new _Polynom(data1);
foreach (var item in data2.listElements)
{
if (result.listElements[item.Key] != null)
{
result.listElements[item.Key].coefficient -= item.Value.coefficient;
if (result.listElements[item.Key].coefficient == 0)
{
result.listElements.Remove(item.Key);
}
}
else
{
result.Add(new Element(item.Value.coefficient * (-1), item.Value.power));
}
}
return(result);
}
public static _Polynom operator *(_Polynom data1, _Polynom data2)
{
if (!ValidateForOperation(data1, data2))
{
throw new ArgumentNullException();
}
_Polynom result = new _Polynom();
foreach (var item1 in data1.listElements)
{
foreach (var item2 in data2.listElements)
{
int newPower = item1.Value.power + item2.Value.power;
double newCoef = item1.Value.coefficient * item2.Value.coefficient;
result.Add(newCoef, newPower);
}
}
return(result);
}