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Tina6/tina-libs/tina/math/mathMatr_check.c

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  1 /**********
  2  *
  3  * Copyright (c) 2003, Division of Imaging Science and Biomedical Engineering,
  4  * University of Manchester, UK.  All rights reserved.
  5  * 
  6  * Redistribution and use in source and binary forms, with or without modification, 
  7  * are permitted provided that the following conditions are met:
  8  * 
  9  *   . Redistributions of source code must retain the above copyright notice, 
 10  *     this list of conditions and the following disclaimer.
 11  *    
 12  *   . Redistributions in binary form must reproduce the above copyright notice,
 13  *     this list of conditions and the following disclaimer in the documentation 
 14  *     and/or other materials provided with the distribution.
 15  * 
 16  *   . Neither the name of the University of Manchester nor the names of its
 17  *     contributors may be used to endorse or promote products derived from this 
 18  *     software without specific prior written permission.
 19  * 
 20  * 
 21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
 22  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
 23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
 24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
 25  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
 26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
 27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
 29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
 30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
 31  * POSSIBILITY OF SUCH DAMAGE.
 32  *
 33  **********
 34  *
 35  * Program :    TINA
 36  * File    :  $Source: /home/tina/cvs/tina-libs/tina/math/mathMatr_check.c,v $
 37  * Date    :  $Date: 2003/09/23 11:32:20 $
 38  * Version :  $Revision: 1.4 $
 39  * CVS Id  :  $Id: mathMatr_check.c,v 1.4 2003/09/23 11:32:20 matts Exp $
 40  *
 41  * Author  :  Legacy TINA
 42  *
 43  * Notes : Matrix invariant check
 44  *
 45  *********
 46 */
 47 /** 
 48  *  @file
 49  *  @brief  Matrix invariant check.     
 50  * 
 51 */
 52 
 53 #include "mathMatr_check.h"
 54 
 55 #if HAVE_CONFIG_H
 56 #include <config.h>
 57 #endif
 58 
 59 
 60 #include <stdio.h>
 61 #include <math.h>
 62 #include <tina/sys/sysDef.h>
 63 #include <tina/math/math_MatrDef.h>
 64 #include <tina/math/mathMatr_prod.h>
 65 #include <tina/math/mathMatr_free.h>
 66 
 67 /* smc 2/2/93 */
 68 #ifdef Print
 69 #undef Print
 70 #endif
 71 /* smc 2/2/93 */
 72 
 73 #define Print(x)  { if(out_text!=NULL) out_text(x); }
 74 
 75 void            dmatrix_checkinv(void (*out_text) ( /* ??? */ ), Matrix * a, Matrix * b, char *mname)
 76 {
 77         int             i, j;
 78         Matrix         *check;
 79         Matrix         *matrix_prod();
 80         double          tot = 0.0, tot2 = 0.0;
 81         char            temp[256];
 82 
 83         if (a == NULL || b == NULL)
 84         {
 85                 Print(sprintf(temp, " NULL matrix passed to checkinv \n"));
 86                 return;
 87         }
 88         check = matrix_prod(a, b);
 89 
 90         Print(sprintf(temp, " check inverse for %s \n", mname));
 91         for (i = 0; i < check->n; i++)
 92         {
 93                 Print(sprintf(temp, "%4.2f ", check->el.double_v[i][i]));
 94                 tot += fabs(check->el.double_v[i][i] - 1.0);
 95                 for (j = 0; j < check->n; j++)
 96                 {
 97                         if (i != j)
 98                                 tot2 += fabs(check->el.double_v[i][j]);
 99                 }
100         }
101         Print(sprintf(temp, "\n diagonal error %8.6f off diagonal error %8.6f\n", tot, tot2));
102 
103         matrix_free((Matrix *) check);
104 }
105 

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