X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=ginac%2Fpower.h;h=fc35791c4815e39e2744e01f15310f70382c54e8;hp=d13463af714df83e7a167fee4265f752e69b0d16;hb=e5c76f659e2e882da3d5dba60502d6851f782bf3;hpb=276f1bc79bd0f41a12fb45ece6c7857e13c6668e diff --git a/ginac/power.h b/ginac/power.h index d13463af..fc35791c 100644 --- a/ginac/power.h +++ b/ginac/power.h @@ -3,7 +3,7 @@ * Interface to GiNaC's symbolic exponentiation (basis^exponent). */ /* - * GiNaC Copyright (C) 1999-2001 Johannes Gutenberg University Mainz, Germany + * GiNaC Copyright (C) 1999-2011 Johannes Gutenberg University Mainz, Germany * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -17,19 +17,21 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ -#ifndef __GINAC_POWER_H__ -#define __GINAC_POWER_H__ +#ifndef GINAC_POWER_H +#define GINAC_POWER_H #include "basic.h" #include "ex.h" +#include "archive.h" namespace GiNaC { class numeric; class add; +class mul; /** This class holds a two-component object, a basis and and exponent * representing exponentiation. */ @@ -41,35 +43,43 @@ class power : public basic // member functions - // other ctors + // other constructors public: - power(const ex & lh, const ex & rh); - power(const ex & lh, const numeric & rh); + power(const ex & lh, const ex & rh) : basis(lh), exponent(rh) {} + template power(const ex & lh, const T & rh) : basis(lh), exponent(rh) {} - // functions overriding virtual functions from bases classes + // functions overriding virtual functions from base classes public: - void print(const print_context & c, unsigned level = 0) const; - unsigned precedence(void) const {return 60;} + unsigned precedence() const {return 60;} bool info(unsigned inf) const; - unsigned nops() const; - ex & let_op(int i); + size_t nops() const; + ex op(size_t i) const; ex map(map_function & f) const; + bool is_polynomial(const ex & var) const; int degree(const ex & s) const; int ldegree(const ex & s) const; ex coeff(const ex & s, int n = 1) const; ex eval(int level=0) const; ex evalf(int level=0) const; - ex evalm(void) const; + ex evalm() const; ex series(const relational & s, int order, unsigned options = 0) const; - ex subs(const lst & ls, const lst & lr, bool no_pattern = false) const; - ex normal(lst &sym_lst, lst &repl_lst, int level = 0) const; - ex to_rational(lst &repl_lst) const; - exvector get_free_indices(void) const; - ex simplify_ncmul(const exvector & v) const; + ex subs(const exmap & m, unsigned options = 0) const; + bool has(const ex & other, unsigned options = 0) const; + ex normal(exmap & repl, exmap & rev_lookup, int level = 0) const; + ex to_rational(exmap & repl) const; + ex to_polynomial(exmap & repl) const; + ex conjugate() const; + ex real_part() const; + ex imag_part() const; + /** Save (a.k.a. serialize) object into archive. */ + void archive(archive_node& n) const; + /** Read (a.k.a. deserialize) object from archive. */ + void read_archive(const archive_node& n, lst& syms); protected: ex derivative(const symbol & s) const; - unsigned return_type(void) const; - unsigned return_type_tinfo(void) const; + ex eval_ncmul(const exvector & v) const; + unsigned return_type() const; + return_type_t return_type_tinfo() const; ex expand(unsigned options = 0) const; // new virtual functions which can be overridden by derived classes @@ -77,12 +87,17 @@ protected: // non-virtual functions in this class protected: - ex expand_add(const add & a, int n) const; - ex expand_add_2(const add & a) const; - ex expand_mul(const mul & m, const numeric & n) const; - //ex expand_commutative_3(const ex & basis, const numeric & exponent, - // unsigned options) const; - //ex expand_noncommutative(const ex & basis, const numeric & exponent, unsigned options) const; + void print_power(const print_context & c, const char *powersymbol, const char *openbrace, const char *closebrace, unsigned level) const; + void do_print_dflt(const print_dflt & c, unsigned level) const; + void do_print_latex(const print_latex & c, unsigned level) const; + void do_print_csrc(const print_csrc & c, unsigned level) const; + void do_print_python(const print_python & c, unsigned level) const; + void do_print_python_repr(const print_python_repr & c, unsigned level) const; + void do_print_csrc_cl_N(const print_csrc_cl_N & c, unsigned level) const; + + ex expand_add(const add & a, int n, unsigned options) const; + ex expand_add_2(const add & a, unsigned options) const; + ex expand_mul(const mul & m, const numeric & n, unsigned options, bool from_expand = false) const; // member variables @@ -90,12 +105,7 @@ protected: ex basis; ex exponent; }; - -// utility functions -inline const power &ex_to_power(const ex &e) -{ - return static_cast(*e.bp); -} +GINAC_DECLARE_UNARCHIVER(power); // wrapper functions @@ -107,10 +117,19 @@ inline ex pow(const ex & b, const ex & e) { return power(b, e); } +template +inline ex pow(const T1 & b, const T2 & e) +{ + return power(ex(b), ex(e)); +} /** Square root expression. Returns a power-object with exponent 1/2. */ -ex sqrt(const ex & a); +inline ex sqrt(const ex & a) +{ + extern const ex _ex1_2; + return power(a,_ex1_2); +} } // namespace GiNaC -#endif // ndef __GINAC_POWER_H__ +#endif // ndef GINAC_POWER_H