public static bool CosOverSinToCotRunnable(RPN.Node node)
{
return(node.IsDivision() && node[0].IsFunction("sin") &&
node[1].IsFunction("cos") &&
node[0, 0].Matches(node[1, 0]));
}
public static bool SinUnderToCscRunnable(RPN.Node node)
{
return(node.IsDivision() && node[0].IsFunction("sin"));
}
public static bool CotUnderToTanRunnable(RPN.Node node)
{
return(node.IsDivision() && node[0].IsFunction("cot"));
}
public static bool CosUnderToSecRunnable(RPN.Node node)
{
return(node.IsDivision() && node[0].IsFunction("cos"));
}
public static bool CscUnderToSinRunnable(RPN.Node node)
{
return(node.IsDivision() && node[0].IsFunction("csc"));
}
public static bool SecUnderToCosRunnable(RPN.Node node)
{
return(node.IsDivision() && node[0].IsFunction("sec"));
}
public static bool TanUnderToCotRunnable(RPN.Node node)
{
return(node.IsDivision() && node.Children[0].IsFunction("tan"));
}
public static bool setRule(RPN.Node node)
{
return(node.IsDivision());
}
public static bool setRule(RPN.Node node)
{
return(node.IsAddition() || node.IsSubtraction() || node.IsMultiplication() || node.IsExponent() ||
node.IsDivision());
}