public static bool Is(this IValue a, IValue b)
{
a = a.Simple();
b = b.Simple();
if (a.Integerable && b.Integerable)
{
return(a.ToInteger() == b.ToInteger());
}
if (a.Fractionable && b.Fractionable)
{
Fraction fa = a.ToFraction();
Fraction fb = b.ToFraction();
return(fa.Numerator.Is(fb.Numerator) && fa.Denominator.Is(fb.Denominator));
}
if (a.Radicalable && b.Radicalable)
{
Radical ra = a.ToRadical();
Radical rb = b.ToRadical();
return(ra.Radicant.Is(rb.Radicant) && ra.Coefficient.Is(rb.Coefficient));
}
return(a.Value == b.Value);
}
public Product(IValue first, IValue second)
{
first = first.Direct();
second = second.Direct();
if (first.Integerable && second.Integerable)
{
First = first.ToInteger() * second.ToInteger();
Second = new Integer(1);
return;
}
if (first.Fractionable && second.Fractionable)
{
Fraction a = first.ToFraction();
Fraction b = second.ToFraction();
First = new Fraction(new Product(a.Numerator, b.Numerator).Simple(), new Product(a.Denominator, b.Denominator).Simple());
Second = new Integer(1);
return;
}
if (first.Radicalable && second.Radicalable)
{
Radical a = first.ToRadical();
Radical b = second.ToRadical();
First = new Radical(new Product(a.Radicant, b.Radicant).Simple(), new Product(a.Coefficient, b.Coefficient).Simple(), true);
Second = new Integer(1);
return;
}
if (First is Sum firstSum)
{
First = new Sum(new Product(firstSum.First, Second).Simple(), new Product(firstSum.Second, Second));
Second = new Integer(1);
return;
}
if (Second is Sum secondSum)
{
First = new Sum(new Product(secondSum.First, First).Simple(), new Product(secondSum.Second, First));
Second = new Integer(1);
return;
}
First = first.Simple();
Second = second.Simple();
}