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76 lines
2.2 KiB
C
76 lines
2.2 KiB
C
/////////////////////////////////////////////////////////////////////////////////
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//
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// Solution of linear systems involved in the Levenberg - Marquardt
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// minimization algorithm
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// Copyright (C) 2004 Manolis Lourakis (lourakis at ics forth gr)
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// Institute of Computer Science, Foundation for Research & Technology - Hellas
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// Heraklion, Crete, Greece.
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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/////////////////////////////////////////////////////////////////////////////////
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/********************************************************************************
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* LAPACK-based implementations for various linear system solvers. The same core
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* code is used with appropriate #defines to derive single and double precision
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* solver versions, see also Axb_core.c
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********************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <math.h>
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#include "levmar.h"
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#include "misc.h"
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#if !defined(LM_DBL_PREC) && !defined(LM_SNGL_PREC)
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#error At least one of LM_DBL_PREC, LM_SNGL_PREC should be defined!
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#endif
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#ifdef LM_DBL_PREC
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/* double precision definitions */
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#define LM_REAL double
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#define LM_PREFIX d
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#define LM_CNST(x) (x)
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#ifndef HAVE_LAPACK
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#include <float.h>
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#define LM_REAL_EPSILON DBL_EPSILON
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#endif
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#include "Axb_core.c"
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#undef LM_REAL
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#undef LM_PREFIX
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#undef LM_CNST
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#undef LM_REAL_EPSILON
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#endif /* LM_DBL_PREC */
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#ifdef LM_SNGL_PREC
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/* single precision (float) definitions */
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#define LM_REAL float
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#define LM_PREFIX s
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#define __SUBCNST(x) x##F
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#define LM_CNST(x) __SUBCNST(x) // force substitution
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#ifndef HAVE_LAPACK
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#define LM_REAL_EPSILON FLT_EPSILON
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#endif
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#include "Axb_core.c"
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#undef LM_REAL
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#undef LM_PREFIX
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#undef __SUBCNST
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#undef LM_CNST
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#undef LM_REAL_EPSILON
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#endif /* LM_SNGL_PREC */
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