- Same shit as Christian did yesterday in ginac/.

[ginac.git] / ginac / inifcns.h

diff --git a/ginac/inifcns.h b/ginac/inifcns.h
index 603edb3ec1854383f5cded07cbaf5d956d3828d7..4c63c8c422ceae2fc98f1878edbd4c34a3fc5475 100644 (file)
--- a/ginac/inifcns.h
+++ b/ginac/inifcns.h
@@ -32,6 +32,12 @@ namespace GiNaC {
 
 /** Absolute value. */
 DECLARE_FUNCTION_1P(abs)
+       
+/** Complex sign. */
+DECLARE_FUNCTION_1P(csgn)
+
+/** Eta function: log(a*b) == log(a) + log(b) + eta(a, b). */
+DECLARE_FUNCTION_2P(eta)
 
 /** Sine. */
 DECLARE_FUNCTION_1P(sin)
@@ -84,36 +90,37 @@ DECLARE_FUNCTION_1P(Li2)
 /** Trilogarithm. */
 DECLARE_FUNCTION_1P(Li3)
 
-// overloading at work: we cannot use the macros
+// overloading at work: we cannot use the macros here
 /** Riemann's Zeta-function. */
 extern const unsigned function_index_zeta1;
 inline function zeta(const ex & p1) {
-    return function(function_index_zeta1, p1);
+       return function(function_index_zeta1, p1);
 }
 /** Derivatives of Riemann's Zeta-function. */
 extern const unsigned function_index_zeta2;
 inline function zeta(const ex & p1, const ex & p2) {
-    return function(function_index_zeta2, p1, p2);
+       return function(function_index_zeta2, p1, p2);
 }
 
 /** Gamma-function. */
-DECLARE_FUNCTION_1P(gamma)
+DECLARE_FUNCTION_1P(lgamma)
+DECLARE_FUNCTION_1P(tgamma)
 
 /** Beta-function. */
 DECLARE_FUNCTION_2P(beta)
 
-// overloading at work: we cannot use the macros
+// overloading at work: we cannot use the macros here
 /** Psi-function (aka digamma-function). */
 extern const unsigned function_index_psi1;
 inline function psi(const ex & p1) {
-    return function(function_index_psi1, p1);
+       return function(function_index_psi1, p1);
 }
 /** Derivatives of Psi-function (aka polygamma-functions). */
 extern const unsigned function_index_psi2;
 inline function psi(const ex & p1, const ex & p2) {
-    return function(function_index_psi2, p1, p2);
+       return function(function_index_psi2, p1, p2);
 }
-    
+       
 /** Factorial function. */
 DECLARE_FUNCTION_1P(factorial)
 
@@ -123,13 +130,16 @@ DECLARE_FUNCTION_2P(binomial)
 /** Order term function (for truncated power series). */
 DECLARE_FUNCTION_1P(Order)
 
+/** Inert partial differentiation operator. */
+DECLARE_FUNCTION_2P(Derivative)
+
 ex lsolve(const ex &eqns, const ex &symbols);
 
 ex ncpower(const ex &basis, unsigned exponent);
 
 inline bool is_order_function(const ex & e)
 {
-    return is_ex_the_function(e, Order);
+       return is_ex_the_function(e, Order);
 }
 
 #ifndef NO_NAMESPACE_GINAC