/usr/include/ginac/fderivative.h is in libginac-dev 1.6.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 | /** @file fderivative.h
*
* Interface to abstract derivatives of functions. */
/*
* 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
* 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_FDERIVATIVE_H
#define GINAC_FDERIVATIVE_H
#include "function.h"
#include <set>
namespace GiNaC {
typedef std::multiset<unsigned> paramset;
/** This class represents the (abstract) derivative of a symbolic function.
* It is used to represent the derivatives of functions that do not have
* a derivative or series expansion procedure defined. */
class fderivative : public function
{
GINAC_DECLARE_REGISTERED_CLASS(fderivative, function)
// other constructors
public:
/** Construct derivative with respect to one parameter.
*
* @param ser Serial number of function
* @param param Number of parameter with respect to which to take the derivative
* @param args Arguments of derivative function */
fderivative(unsigned ser, unsigned param, const exvector & args);
/** Construct derivative with respect to multiple parameters.
*
* @param ser Serial number of function
* @param params Set of numbers of parameters with respect to which to take the derivative
* @param args Arguments of derivative function */
fderivative(unsigned ser, const paramset & params, const exvector & args);
// internal constructors
fderivative(unsigned ser, const paramset & params, std::auto_ptr<exvector> vp);
// functions overriding virtual functions from base classes
public:
void print(const print_context & c, unsigned level = 0) const;
ex eval(int level = 0) const;
ex evalf(int level = 0) const;
ex series(const relational & r, int order, unsigned options = 0) const;
ex thiscontainer(const exvector & v) const;
ex thiscontainer(std::auto_ptr<exvector> vp) const;
void archive(archive_node& n) const;
void read_archive(const archive_node& n, lst& syms);
protected:
ex derivative(const symbol & s) const;
bool is_equal_same_type(const basic & other) const;
bool match_same_type(const basic & other) const;
// non-virtual functions in this class
protected:
void do_print(const print_context & c, unsigned level) const;
void do_print_csrc(const print_csrc & c, unsigned level) const;
void do_print_tree(const print_tree & c, unsigned level) const;
// member variables
protected:
paramset parameter_set; /**< Set of parameter numbers with respect to which to take the derivative */
};
GINAC_DECLARE_UNARCHIVER(fderivative);
} // namespace GiNaC
#endif // ndef GINAC_DERIVATIVE_H
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