mentioned ncpow()

[ginac.git] / ginac / inifcns.cpp

diff --git a/ginac/inifcns.cpp b/ginac/inifcns.cpp
index fbdceb708c9e7d22795e540051499a6a519ae1f2..3bf0b2f7e9b93554c9344d357e848be1c9ba4aa3 100644 (file)
--- a/ginac/inifcns.cpp
+++ b/ginac/inifcns.cpp
@@ -82,7 +82,8 @@ static ex csgn_eval(const ex & arg)
        if (is_ex_exactly_of_type(arg, numeric))
                return csgn(ex_to_numeric(arg));
        
-       else if (is_ex_exactly_of_type(arg, mul)) {
+       else if (is_ex_of_type(arg, mul) &&
+                is_ex_of_type(arg.op(arg.nops()-1),numeric)) {
                numeric oc = ex_to_numeric(arg.op(arg.nops()-1));
                if (oc.is_real()) {
                        if (oc > 0)
@@ -101,7 +102,7 @@ static ex csgn_eval(const ex & arg)
                                return -csgn(I*arg/oc).hold();
                }
        }
-   
+       
        return csgn(arg).hold();
 }
 
@@ -177,7 +178,8 @@ static ex eta_series(const ex & arg1,
 
 REGISTER_FUNCTION(eta, eval_func(eta_eval).
                        evalf_func(eta_evalf).
-                       series_func(eta_series));
+                       series_func(eta_series).
+                       latex_name("\\eta"));
 
 
 //////////
@@ -315,7 +317,8 @@ static ex Li2_series(const ex &x, const relational &rel, int order, unsigned opt
 REGISTER_FUNCTION(Li2, eval_func(Li2_eval).
                        evalf_func(Li2_evalf).
                        derivative_func(Li2_deriv).
-                       series_func(Li2_series));
+                       series_func(Li2_series).
+                       latex_name("\\mbox{Li}_2"));
 
 //////////
 // trilogarithm
@@ -328,7 +331,8 @@ static ex Li3_eval(const ex & x)
        return Li3(x).hold();
 }
 
-REGISTER_FUNCTION(Li3, eval_func(Li3_eval));
+REGISTER_FUNCTION(Li3, eval_func(Li3_eval).
+                       latex_name("\\mbox{Li}_3"));
 
 //////////
 // factorial
@@ -404,7 +408,8 @@ static ex Order_series(const ex & x, const relational & r, int order, unsigned o
 // Differentiation is handled in function::derivative because of its special requirements
 
 REGISTER_FUNCTION(Order, eval_func(Order_eval).
-                         series_func(Order_series));
+                         series_func(Order_series).
+                         latex_name("\\mathcal{O}"));
 
 //////////
 // Inert partial differentiation operator