public static bool TrigIdentitySinPlusCosRunnable(RPN.Node node)
{
return(node.IsAddition() &&
node[0].IsExponent() &&
node[1].IsExponent() &&
node[0, 0].IsNumber(2) &&
node[1, 0].IsNumber(2) &&
(node[0, 1].IsFunction("cos") || node[0, 1].IsFunction("sin")) &&
(node[1, 1].IsFunction("sin") || node[1, 1].IsFunction("cos")) &&
!node.ChildrenAreIdentical() &&
!node.ContainsDomainViolation() &&
node[0, 1, 0].Matches(node[1, 1, 0]));
}
public static bool setRule(RPN.Node node)
{
return(node.IsAddition());
}
public static bool LogSummationRunnable(RPN.Node node)
{
return(node.IsAddition() && node.Children[0].IsLog() &&
node.Children[1].IsLog() &&
node.Children[0].Children[1].Matches(node.Children[1].Children[1]));
}
public static bool setRule(RPN.Node node)
{
return(node.IsAddition() || node.IsSubtraction() || node.IsMultiplication() || node.IsExponent() ||
node.IsDivision());
}
public static bool LnSummationRunnable(RPN.Node node)
{
return(node.IsAddition() && node.Children[0].IsLn() && node.Children[1].IsLn());
}