- added lst::remove_first() and lst::remove_last()

[ginac.git] / ginac / inifcns.h

diff --git a/ginac/inifcns.h b/ginac/inifcns.h
index 73fff2167cae0314acf09b32f8abbc20d042c9ed..314228f8033972bbeee3944f6fbc84064129361a 100644 (file)
--- a/ginac/inifcns.h
+++ b/ginac/inifcns.h
@@ -133,8 +133,36 @@ DECLARE_FUNCTION_2P(Derivative)
 
 ex lsolve(const ex &eqns, const ex &symbols);
 
-ex ncpower(const ex &basis, unsigned exponent);
+/** Symmetrize expression over a set of objects (symbols, indices). */
+ex symmetrize(const ex & e, exvector::const_iterator first, exvector::const_iterator last);
 
+/** Symmetrize expression over a set of objects (symbols, indices). */
+inline ex symmetrize(const ex & e, const exvector & v)
+{
+       return symmetrize(e, v.begin(), v.end());
+}
+
+/** Antisymmetrize expression over a set of objects (symbols, indices). */
+ex antisymmetrize(const ex & e, exvector::const_iterator first, exvector::const_iterator last);
+
+/** Antisymmetrize expression over a set of objects (symbols, indices). */
+inline ex antisymmetrize(const ex & e, const exvector & v)
+{
+       return antisymmetrize(e, v.begin(), v.end());
+}
+
+/** Symmetrize expression by cyclic permuation over a set of objects
+ *  (symbols, indices). */
+ex symmetrize_cyclic(const ex & e, exvector::const_iterator first, exvector::const_iterator last);
+
+/** Symmetrize expression by cyclic permutation over a set of objects
+ *  (symbols, indices). */
+inline ex symmetrize_cyclic(const ex & e, const exvector & v)
+{
+       return symmetrize(e, v.begin(), v.end());
+}
+
+/** Check whether a function is the Order (O(n)) function. */
 inline bool is_order_function(const ex & e)
 {
        return is_ex_the_function(e, Order);