/usr/include/pynac/integral.h is in libpynac-dev 0.3.2+dfsg-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 90 | /** @file integral.h
*
* Interface to GiNaC's symbolic integral. */
/*
* GiNaC Copyright (C) 1999-2008 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_INTEGRAL_H__
#define __GINAC_INTEGRAL_H__
#include "basic.h"
#include "ex.h"
namespace GiNaC {
/** Symbolic integral. */
class integral : public basic
{
GINAC_DECLARE_REGISTERED_CLASS(integral, basic)
// other constructors
public:
integral(const ex & x_, const ex & a_, const ex & b_, const ex & f_);
// functions overriding virtual functions from base classes
public:
unsigned precedence() const {return 45;}
ex eval(int level=0) const;
ex evalf(int level=0) const;
int degree(const ex & s) const;
int ldegree(const ex & s) const;
ex eval_ncmul(const exvector & v) const;
size_t nops() const;
ex op(size_t i) const;
ex & let_op(size_t i);
ex expand(unsigned options = 0) const;
exvector get_free_indices() const;
unsigned return_type() const;
tinfo_t return_type_tinfo() const;
ex conjugate() const;
ex eval_integ() const;
protected:
ex derivative(const symbol & s) const;
ex series(const relational & r, int order, unsigned options = 0) const;
// new virtual functions which can be overridden by derived classes
// none
// non-virtual functions in this class
protected:
void do_print(const print_context & c, unsigned level) const;
void do_print_latex(const print_latex & c, unsigned level) const;
public:
static int max_integration_level;
static ex relative_integration_error;
private:
ex x;
ex a;
ex b;
ex f;
};
// utility functions
GiNaC::ex adaptivesimpson(
const GiNaC::ex &x,
const GiNaC::ex &a,
const GiNaC::ex &b,
const GiNaC::ex &f,
const GiNaC::ex &error = integral::relative_integration_error
);
} // namespace GiNaC
#endif // ndef __GINAC_INTEGRAL_H__
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