Synced changes to HEAD.

[ginac.git] / ginac / inifcns_zeta.cpp

diff --git a/ginac/inifcns_zeta.cpp b/ginac/inifcns_zeta.cpp
index 365f35e22aeb9501541b8fb559a9d44168d171c0..2dba976bf4c2faf365aca062ab5de1a453b13f52 100644 (file)
--- a/ginac/inifcns_zeta.cpp
+++ b/ginac/inifcns_zeta.cpp
@@ -33,65 +33,6 @@
 
 namespace GiNaC {
 
-//////////
-// Riemann's Zeta-function
-//////////
-
-static ex zeta1_evalf(const ex & x)
-{
-       if (is_exactly_a<numeric>(x)) {
-               try {
-                       return zeta(ex_to<numeric>(x));
-               } catch (const dunno &e) { }
-       }
-       
-       return zeta(x).hold();
-}
-
-static ex zeta1_eval(const ex & x)
-{
-       if (x.info(info_flags::numeric)) {
-               const numeric &y = ex_to<numeric>(x);
-               // trap integer arguments:
-               if (y.is_integer()) {
-                       if (y.is_zero())
-                               return _ex_1_2;
-                       if (y.is_equal(_num1))
-                               throw(std::domain_error("zeta(1): infinity"));
-                       if (y.info(info_flags::posint)) {
-                               if (y.info(info_flags::odd))
-                                       return zeta(x).hold();
-                               else
-                                       return abs(bernoulli(y))*pow(Pi,y)*pow(_num2,y-_num1)/factorial(y);
-                       } else {
-                               if (y.info(info_flags::odd))
-                                       return -bernoulli(_num1-y)/(_num1-y);
-                               else
-                                       return _ex0;
-                       }
-               }
-               // zeta(float)
-               if (y.info(info_flags::numeric) && !y.info(info_flags::crational))
-                       return zeta1_evalf(x);
-       }
-       return zeta(x).hold();
-}
-
-static ex zeta1_deriv(const ex & x, unsigned deriv_param)
-{
-       GINAC_ASSERT(deriv_param==0);
-       
-       return zeta(_ex1, x);
-}
-
-unsigned zeta1_SERIAL::serial =
-       function::register_new(function_options("zeta").
-                              eval_func(zeta1_eval).
-                              evalf_func(zeta1_evalf).
-                              derivative_func(zeta1_deriv).
-                              latex_name("\\zeta").
-                              overloaded(2));
-
 //////////
 // Derivatives of Riemann's Zeta-function  zeta(0,x)==zeta(x)
 //////////