private static bool ReduceMultipliedAlphabeticFactors(ComponentListFactor leftFactor, ComponentListFactor rightFactor, out Expression expression)
{
// If any alphabetic factors are identical, convert to exponent
if (leftFactor.Factor is AlphabeticFactor && rightFactor.Factor is AlphabeticFactor)
{
var leftAlpha = (AlphabeticFactor) leftFactor.Factor;
var rightAlpha = (AlphabeticFactor) rightFactor.Factor;
if (leftAlpha.Value.Equals(rightAlpha.Value))
{
var shouldPower = leftFactor.IsInNumerator && rightFactor.IsInNumerator;
if (shouldPower)
{
expression = new SingleComponentExpression(new FunctionComponent("^", new List<Expression> { Expressionizer.ToExpression(leftAlpha), NumberToExpression(new Integer(2)) }));
return true;
}
expression = NumberToExpression(new Integer(1));
return true;
}
}
expression = null;
return false;
}
public void ZeroExpressionTest()
{
var exp = new SingleComponentExpression(new SingleFactorComponent(new NumericFactor(new Integer(0))));
Assert.AreEqual("0", exp.ToString());
}