3 * Interface to GiNaC's products of expressions. */
6 * GiNaC Copyright (C) 1999-2003 Johannes Gutenberg University Mainz, Germany
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 #ifndef __GINAC_MUL_H__
24 #define __GINAC_MUL_H__
26 #include "expairseq.h"
30 /** Product of expressions. */
31 class mul : public expairseq
33 GINAC_DECLARE_REGISTERED_CLASS(mul, expairseq)
41 mul(const ex & lh, const ex & rh);
42 mul(const exvector & v);
43 mul(const epvector & v);
44 mul(const epvector & v, const ex & oc);
45 mul(std::auto_ptr<epvector> vp, const ex & oc);
46 mul(const ex & lh, const ex & mh, const ex & rh);
48 // functions overriding virtual functions from base classes
50 unsigned precedence() const {return 50;}
51 bool info(unsigned inf) const;
52 int degree(const ex & s) const;
53 int ldegree(const ex & s) const;
54 ex coeff(const ex & s, int n = 1) const;
55 ex eval(int level=0) const;
56 ex evalf(int level=0) const;
58 ex series(const relational & s, int order, unsigned options = 0) const;
59 ex normal(exmap & repl, exmap & rev_lookup, int level = 0) const;
60 numeric integer_content() const;
61 ex smod(const numeric &xi) const;
62 numeric max_coefficient() const;
63 exvector get_free_indices() const;
65 ex derivative(const symbol & s) const;
66 ex eval_ncmul(const exvector & v) const;
67 unsigned return_type() const;
68 unsigned return_type_tinfo() const;
69 ex thisexpairseq(const epvector & v, const ex & oc) const;
70 ex thisexpairseq(std::auto_ptr<epvector> vp, const ex & oc) const;
71 expair split_ex_to_pair(const ex & e) const;
72 expair combine_ex_with_coeff_to_pair(const ex & e, const ex & c) const;
73 expair combine_pair_with_coeff_to_pair(const expair & p, const ex & c) const;
74 ex recombine_pair_to_ex(const expair & p) const;
75 bool expair_needs_further_processing(epp it);
76 ex default_overall_coeff() const;
77 void combine_overall_coeff(const ex & c);
78 void combine_overall_coeff(const ex & c1, const ex & c2);
79 bool can_make_flat(const expair & p) const;
80 ex expand(unsigned options=0) const;
82 // new virtual functions which can be overridden by derived classes
85 // non-virtual functions in this class
87 ex algebraic_subs_mul(const exmap & m, unsigned options) const;
89 void print_overall_coeff(const print_context & c, const char *mul_sym) const;
90 void do_print(const print_context & c, unsigned level) const;
91 void do_print_latex(const print_latex & c, unsigned level) const;
92 void do_print_csrc(const print_csrc & c, unsigned level) const;
93 void do_print_python_repr(const print_python_repr & c, unsigned level) const;
94 static bool can_be_further_expanded(const ex & e);
95 std::auto_ptr<epvector> expandchildren(unsigned options) const;
100 /** Specialization of is_exactly_a<mul>(obj) for mul objects. */
101 template<> inline bool is_exactly_a<mul>(const basic & obj)
103 return obj.tinfo()==TINFO_mul;
108 #endif // ndef __GINAC_MUL_H__