view liboctave/numeric/fCmplxLU.h @ 20161:65e22ba879f0

psi: add support to compute the polygamma function (kth-derivative). * libinterp/corefcn/psi.cc: previously, only the digamma function, k == 0, was being computed. Add support for polygamma function, add tests, and improve documentation. * liboctave/cruft/slatec-fn/dpsifn.f, liboctave/cruft/slatec-fn/psifn.f: the two functions that actually compute the the polygamma functions, copied verbatim from SLATEC, and under public domain. * liboctave/cruft/slatec-fn/module.mk: add dpsifn.f and psifn.f to the build system. * liboctave/numeric/lo-specfun.cc: add new signature for function psi to compute polygamma function that wraps the Fortran DPSIFN and PSIFN functions. * liboctave/numeric/lo-specfun.h: declare new function and document all psi() with doxygen.
author Carnë Draug <carandraug@octave.org>
date Sun, 03 May 2015 22:52:07 +0100
parents 4197fc428c7d
children
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/*

Copyright (C) 1994-2015 John W. Eaton

This file is part of Octave.

Octave 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 3 of the License, or (at your
option) any later version.

Octave 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 Octave; see the file COPYING.  If not, see
<http://www.gnu.org/licenses/>.

*/

#if !defined (octave_fCmplxLU_h)
#define octave_fCmplxLU_h 1

#include "base-lu.h"
#include "dMatrix.h"
#include "fCMatrix.h"

class
OCTAVE_API
FloatComplexLU : public base_lu <FloatComplexMatrix>
{
public:

  FloatComplexLU (void)
    : base_lu <FloatComplexMatrix> () { }

  FloatComplexLU (const FloatComplexMatrix& a);

  FloatComplexLU (const FloatComplexLU& a)
    : base_lu <FloatComplexMatrix> (a) { }

  FloatComplexLU (const FloatComplexMatrix& l, const FloatComplexMatrix& u,
                  const PermMatrix& p)
    : base_lu <FloatComplexMatrix> (l, u, p) { }

  FloatComplexLU& operator = (const FloatComplexLU& a)
  {
    if (this != &a)
      base_lu <FloatComplexMatrix> :: operator = (a);

    return *this;
  }

  ~FloatComplexLU (void) { }

  void update (const FloatComplexColumnVector& u,
               const FloatComplexColumnVector& v);

  void update (const FloatComplexMatrix& u, const FloatComplexMatrix& v);

  void update_piv (const FloatComplexColumnVector& u,
                   const FloatComplexColumnVector& v);

  void update_piv (const FloatComplexMatrix& u, const FloatComplexMatrix& v);
};

#endif