static void PerformOperationAndShowResult(BigRational x, BigRational y, RationalOperator op)
{
switch (op)
{
case RationalOperator.Add:
Console.WriteLine("{0} + {1} = {2}", x, y, x + y);
break;
case RationalOperator.Divide:
Console.WriteLine("{0} / {1} = {2}", x, y, x / y);
break;
case RationalOperator.LeastCommonDenominator:
Console.WriteLine("LeastCommonDenominator({0}, {1}) = {2}", x, y, BigRational.LeastCommonDenominator(x, y));
break;
case RationalOperator.Multiply:
Console.WriteLine("{0} * {1} = {2}", x, y, x * y);
break;
case RationalOperator.Subtract:
Console.WriteLine("{0} - {1} = {2}", x, y, x - y);
break;
default:
throw new InvalidOperationException();
}
}
// simple demo which reads in two rationals and an operator then prints the result
static void Main(string[] args)
{
ConsoleProlog();
while (true)
{
BigInteger numA = GetNumber(RationalField.FirstNumerator);
BigInteger numB = GetNumber(RationalField.FirstDenominator);
BigInteger numC = GetNumber(RationalField.SecondNumerator);
BigInteger numD = GetNumber(RationalField.SecondDenominator);
BigRational rational1 = new BigRational(numA, numB);
BigRational rational2 = new BigRational(numC, numD);
RationalOperator op = GetOperator();
PerformOperationAndShowResult(rational1, rational2, op);
}
}
