public override bool Equals(object obj)
{
GeneralPolynomial f = obj as GeneralPolynomial;
if (f == null)
{
return(false);
}
return(this.p.Equals(f.p) && this.inner.Equals(f.inner));
}
public override Function Multiply(Function f)
{
GeneralPolynomial poly = f as GeneralPolynomial;
if (poly == null || !this.inner.Equals(poly.inner))
{
return(base.Multiply(f));
}
Poly p = this.p * poly.p;
return(new GeneralPolynomial(this.inner, p));
}
public override Function Subtract(Function f)
{
GeneralPolynomial poly = f as GeneralPolynomial;
if (poly == null || !this.inner.Equals(poly.inner))
{
return(base.Subtract(f));
}
Poly p = this.p - poly.p;
return(new GeneralPolynomial(this.inner, p));
}
public override Function Add(Function f)
{
GeneralPolynomial poly = f as GeneralPolynomial;
if (poly == null || !this.inner.Equals(poly.inner))
{
return(base.Add(f));
}
//! f is Variable / Constant のときの処理を加える
Poly p = this.p + poly.p;
return(new GeneralPolynomial(this.inner, p));
}
protected override void GetComplexPart(Function reX, Function imX, out Function reY, out Function imY)
{
Polynomial[] reCoef = new Polynomial[this.p.Coef.Length];
Polynomial[] imCoef = new Polynomial[this.p.Coef.Length];
reY = new GeneralPolynomial(reX, reCoef);
imY = new GeneralPolynomial(reX, imCoef);
Function z = imX / reX;
for (int n = 0; n < this.p.Coef.Length; ++n)
{
reCoef[n] = new Polynomial(z, n);
imCoef[n] = new Polynomial(z, n);
for (int k = 0; k <= n; ++k)
{
switch (k % 4)
{
case 0:
reCoef[n].p.Coef[k] = this.p.Coef[n] * Misc.Combination(n, k);
imCoef[n].p.Coef[k] = 0;
break;
case 1:
reCoef[n].p.Coef[k] = 0;
imCoef[n].p.Coef[k] = this.p.Coef[n] * Misc.Combination(n, k);
break;
case 2:
reCoef[n].p.Coef[k] = -this.p.Coef[n] * Misc.Combination(n, k);
imCoef[n].p.Coef[k] = 0;
break;
default:
reCoef[n].p.Coef[k] = 0;
imCoef[n].p.Coef[k] = -this.p.Coef[n] * Misc.Combination(n, k);
break;
}
}
}
}
