public static Fractional operator +(Fractional f1, Fractional f2)
{
var gcd = GCD(f1.Denominator, f2.Denominator);
var denominator = f1.Denominator / gcd * f2.Denominator;
var nominator = checked(f1.Nominator * (f2.Denominator / gcd) + f2.Nominator * (f1.Denominator / gcd));
var result = new Fractional() { Nominator = nominator, Denominator = denominator };
result.Simplify();
return result;
}
public static Fractional Calculate(params int[] coefficients)
{
Fractional frac = new Fractional() { Nominator = 1, Denominator = coefficients.Last() };
for (int i = coefficients.Length - 2; i >= 0; i--)
{
frac = (frac + new Fractional() { Nominator = coefficients[i], Denominator = 1 }).Reciprocal();
frac.Simplify();
}
return frac.Reciprocal();
}
public void TestAdd(int nominator1, int denominator1, int nominator2, int denominator2, int resultNominator, int resultDenominator)
{
var sut1 = new Fractional() { Nominator = (BigInt)nominator1, Denominator = (BigInt)denominator1 };
var sut2 = new Fractional() { Nominator = (BigInt)nominator2, Denominator = (BigInt)denominator2 };
var result = sut1 + sut2;
Assert.That((int)result.Nominator, Is.EqualTo(resultNominator));
Assert.That((int)result.Denominator, Is.EqualTo(resultDenominator));
}
public void TestSimplify(int nominator, int denominator, int resultNominator, int resultDenominator)
{
var sut = new Fractional() { Nominator = nominator, Denominator = denominator };
sut.Simplify();
Assert.That((int)sut.Nominator, Is.EqualTo(resultNominator));
Assert.That((int)sut.Denominator, Is.EqualTo(resultDenominator));
}