public static bool SqrtPowerFourRunnable(RPN.Node node)
{
return(node.IsSqrt() && node[0].IsExponent() &&
node[0, 0].IsNumber() &&
node[0, 0].GetNumber() % 4 == 0);
}
public static bool SqrtNegativeNumbersRunnable(RPN.Node node)
{
return(node.IsSqrt() && node[0].IsLessThanNumber(0));
}
public static bool SqrtToAbsRunnable(RPN.Node node)
{
return(node.IsSqrt() && node[0].IsExponent() && node[0, 0].IsNumber(2));
}