public static Polynomial operator *(Polynomial x, Polynomial y)
{
Polynomial result = new Polynomial();
for (int i = 0; i <= x.PolynomialDegree; ++i)
{
for (int j = 0; j <= y.PolynomialDegree; ++j)
{
if (result.PolynomialDegree < i + j)
{
result.AddCoefficient(0.0);
}
result[i + j] += x[i] * y[j];
}
}
result.Normalize();
return result;
}
public static Polynomial operator +(Polynomial x, Polynomial y)
{
int biggerDegree = Math.Max(x.PolynomialDegree, y.PolynomialDegree);
Polynomial result = new Polynomial();
double tmp = 0.0;
for (int i = 0; i <= biggerDegree; ++i)
{
tmp = 0.0;
if (i <= x.PolynomialDegree)
{
tmp += x[i];
}
if (i <= y.PolynomialDegree)
{
tmp += y[i];
}
result.AddCoefficient(tmp);
}
result.Normalize();
return result;
}
public static Polynomial operator -(Polynomial x)
{
Polynomial result = new Polynomial();
for (int i = 0; i <= x.PolynomialDegree; ++i)
{
result.AddCoefficient(-x[i]);
}
return result;
}