/usr/include/swiginac/tensor.i is in python-swiginac 1.5.1.1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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(c) Copyright 2003, 2004, 2005
Author: Ola Skavhaug and Ondrej Certik
This file is part of swiginac.
swiginac 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.
swiginac 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 swiginac; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
class tensor : public basic
{
public:
tensor();
bool replace_contr_index(exvector::iterator self, exvector::iterator other) const;
};
class tensdelta : public tensor
{
public:
tensdelta();
ex eval_indexed(const basic & i) const;
bool contract_with(exvector::iterator self, exvector::iterator other, exvector & v) const;
};
class tensmetric : public tensor
{
public:
tensmetric();
ex eval_indexed(const basic & i) const;
bool contract_with(exvector::iterator self, exvector::iterator other, exvector & v) const;
};
class minkmetric : public tensmetric
{
public:
minkmetric();
minkmetric(bool pos_sig);
ex eval_indexed(const basic & i) const;
};
class spinmetric : public tensmetric
{
public:
spinmetric();
ex eval_indexed(const basic & i) const;
bool contract_with(exvector::iterator self, exvector::iterator other, exvector & v) const;
};
class tensepsilon : public tensor
{
public:
tensepsilon();
tensepsilon(bool minkowski, bool pos_sig);
ex eval_indexed(const basic & i) const;
bool contract_with(exvector::iterator self, exvector::iterator other, exvector & v) const;
};
ex delta_tensor(const ex & i1, const ex & i2);
ex metric_tensor(const ex & i1, const ex & i2);
ex lorentz_g(const ex & i1, const ex & i2, bool pos_sig = false);
ex spinor_metric(const ex & i1, const ex & i2);
ex epsilon_tensor(const ex & i1, const ex & i2);
ex epsilon_tensor(const ex & i1, const ex & i2, const ex & i3);
ex lorentz_eps(const ex & i1, const ex & i2, const ex & i3, const ex & i4, bool pos_sig = false);
// vim:ft=cpp:
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