X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=ginac%2Fpower.h;h=1662ee0382065dc4312adc7879de8957f775aaf8;hp=ed9c146762c2fd58062274df982cc06b2c65ad21;hb=65f2693a0948d1db0bc68d7656c64e1fed91c158;hpb=6b3768e8c544739ae53321539cb4d1e3112ded1b diff --git a/ginac/power.h b/ginac/power.h index ed9c1467..1662ee03 100644 --- a/ginac/power.h +++ b/ginac/power.h @@ -2,88 +2,110 @@ * * Interface to GiNaC's symbolic exponentiation (basis^exponent). */ -#ifndef _POWER_H_ -#define _POWER_H_ +/* + * GiNaC Copyright (C) 1999-2015 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 + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef GINAC_POWER_H +#define GINAC_POWER_H + +#include "basic.h" +#include "ex.h" +#include "archive.h" + +namespace GiNaC { -class power; class numeric; class add; +class mul; /** This class holds a two-component object, a basis and and exponent * representing exponentiation. */ class power : public basic { - friend class mul; - + GINAC_DECLARE_REGISTERED_CLASS(power, basic) + + friend class mul; + // member functions - - // default constructor, destructor, copy constructor assignment operator and helpers -public: - power(); - ~power(); - power(power const & other); - power const & operator=(power const & other); -protected: - void copy(power const & other); - void destroy(bool call_parent); - - // other constructors + + // other constructors public: - power(ex const & lh, ex const & rh); - power(ex const & lh, numeric const & rh); - - // functions overriding virtual functions from bases classes + 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 base classes public: - basic * duplicate() const; - void printraw(ostream & os) const; - void printtree(ostream & os, unsigned indent) const; - void print(ostream & os, unsigned upper_precedence=0) const; - void printcsrc(ostream & os, unsigned type, unsigned upper_precedence=0) const; - bool info(unsigned inf) const; - int nops() const; - ex & let_op(int const i); - int degree(symbol const & s) const; - int ldegree(symbol const & s) const; - ex coeff(symbol const & s, int const n=1) const; - ex eval(int level=0) const; - ex evalf(int level=0) const; - ex diff(symbol const & s) const; - ex series(symbol const & s, ex const & point, int order) const; - ex subs(lst const & ls, lst const & lr) const; - ex normal(lst &sym_lst, lst &repl_lst, int level=0) const; - ex simplify_ncmul(exvector const & v) const; + unsigned precedence() const override {return 60;} + bool info(unsigned inf) const override; + size_t nops() const override; + ex op(size_t i) const override; + ex map(map_function & f) const override; + bool is_polynomial(const ex & var) const override; + int degree(const ex & s) const override; + int ldegree(const ex & s) const override; + ex coeff(const ex & s, int n = 1) const override; + ex eval(int level=0) const override; + ex evalf(int level=0) const override; + ex evalm() const override; + ex series(const relational & s, int order, unsigned options = 0) const override; + ex subs(const exmap & m, unsigned options = 0) const override; + bool has(const ex & other, unsigned options = 0) const override; + ex normal(exmap & repl, exmap & rev_lookup, int level = 0) const override; + ex to_rational(exmap & repl) const override; + ex to_polynomial(exmap & repl) const override; + ex conjugate() const override; + ex real_part() const override; + ex imag_part() const override; + /** Save (a.k.a. serialize) object into archive. */ + void archive(archive_node& n) const override; + /** Read (a.k.a. deserialize) object from archive. */ + void read_archive(const archive_node& n, lst& syms) override; protected: - int compare_same_type(basic const & other) const; - unsigned return_type(void) const; - unsigned return_type_tinfo(void) const; - ex expand(unsigned options=0) const; - - // new virtual functions which can be overridden by derived classes - // none - - // non-virtual functions in this class + ex derivative(const symbol & s) const override; + ex eval_ncmul(const exvector & v) const override; + unsigned return_type() const override; + return_type_t return_type_tinfo() const override; + ex expand(unsigned options = 0) const override; + + // new virtual functions which can be overridden by derived classes + // none + + // non-virtual functions in this class protected: - ex expand_add(add const & a, int const n) const; - ex expand_add_2(add const & a) const; - ex expand_mul(mul const & m, numeric const & n) const; - //ex expand_commutative_3(ex const & basis, numeric const & exponent, - // unsigned options) const; - // ex expand_noncommutative(ex const & basis, numeric const & 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; + + static ex expand_add(const add & a, long n, unsigned options); + static ex expand_add_2(const add & a, unsigned options); + static ex expand_mul(const mul & m, const numeric & n, unsigned options, bool from_expand = false); + // member variables - + protected: - ex basis; - ex exponent; - static unsigned precedence; + ex basis; + ex exponent; }; - -// global constants - -extern const power some_power; -extern type_info const & typeid_power; - -#define ex_to_power(X) static_cast(*(X).bp) +GINAC_DECLARE_UNARCHIVER(power); // wrapper functions @@ -91,13 +113,23 @@ extern type_info const & typeid_power; * * @param b the basis expression * @param e the exponent expression */ -inline ex pow(ex const & b, ex const & e) -{ return power(b,e); } +inline ex pow(const ex & b, const ex & e) +{ + return dynallocate(b, e); +} +template +inline ex pow(const T1 & b, const T2 & e) +{ + return dynallocate(ex(b), ex(e)); +} -/** Square root expression. Returns a power-object with exponent 1/2 as a new - * expression. */ -inline ex sqrt(ex const & a) -{ return power(a,exHALF()); } +/** Square root expression. Returns a power-object with exponent 1/2. */ +inline ex sqrt(const ex & a) +{ + extern const ex _ex1_2; + return power(a,_ex1_2); +} -#endif // ndef _POWER_H_ +} // namespace GiNaC +#endif // ndef GINAC_POWER_H