/usr/include/sc/math/optimize/transform.h is in libsc-dev 2.3.1-16.
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 91 92 | //
// transform.h
//
// Copyright (C) 1996 Limit Point Systems, Inc.
//
// Author: Curtis Janssen <cljanss@limitpt.com>
// Maintainer: LPS
//
// This file is part of the SC Toolkit.
//
// The SC Toolkit is free software; you can redistribute it and/or modify
// it under the terms of the GNU Library General Public License as published by
// the Free Software Foundation; either version 2, or (at your option)
// any later version.
//
// The SC Toolkit 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 Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public License
// along with the SC Toolkit; see the file COPYING.LIB. If not, write to
// the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
//
// The U.S. Government is granted a limited license as per AL 91-7.
//
#ifndef _math_optimize_transform_h
#define _math_optimize_transform_h
#ifdef __GNUC__
#pragma interface
#endif
#include <math/scmat/matrix.h>
namespace sc {
/** The NonlinearTransform class transforms between
two nonlinear coordinate systems. It is needed when a change
of coordinates occurs in the middle of an optimization. */
class NonlinearTransform: public RefCount {
protected:
// The linear part of the nonlinear transform. This must
// be initialized by derived classes in their
// transform_coordinates routine (or the transform
// members must be overridden so it is ignored).
RefSCMatrix linear_transform_;
public:
~NonlinearTransform();
/// Transform the coordinates.
virtual void transform_coordinates(const RefSCVector& x) = 0;
/** Transform the gradient at a point in the new
coordinate system. transform_coordinates must be
called first to give the point. */
virtual void transform_gradient(const RefSCVector& g);
/** Transform the hessian to the new coordinate system.
transform_gradient must be called first to
initialize this routine. */
virtual void transform_hessian(const RefSymmSCMatrix& h);
/** Transform the inverse of the hessian.
transform_gradient must be called first to
initialize this routine. */
virtual void transform_ihessian(const RefSymmSCMatrix &ih);
};
/** The IdentityTransform is a special case of
NonlinearTransform were no transformation takes place.
*/
class IdentityTransform: public NonlinearTransform {
public:
~IdentityTransform();
/** These override the tranformation members of
NonlinearTransform and do nothing. */
void transform_coordinates(const RefSCVector& x);
void transform_gradient(const RefSCVector& g);
void transform_hessian(const RefSymmSCMatrix& h);
void transform_ihessian(const RefSymmSCMatrix &ih);
};
}
#endif
// Local Variables:
// mode: c++
// c-file-style: "CLJ"
// End:
|