public static Polynomial From(params double[] coefficients)
{
var v = new Polynomial();
for (int i = 0; i < coefficients.Length; i++)
v[i] = coefficients[i];
return v;
}
public static Polynomial operator *(Polynomial p, Polynomial q)
{
var v = new Polynomial();
foreach (var x in p)
foreach (var y in q)
v[x.Exponent + y.Exponent] += x.Coefficient * y.Coefficient;
return v;
}
public static Polynomial Sum(params Polynomial[] args)
{
var v = new Polynomial();
foreach (var arg in args)
foreach (var term in arg)
v[term.Exponent] += term.Coefficient;
return v;
}