aar_mminorir.c

一些矩阵运算的C代码实现：矩阵一般运算

/*         .h         freeware           http://groups.yahoo.com/group/mathc/ */

/* --------------------------------- INCLUDES ------------------------------- */
#include "v_ahfile.h"
/* ------------------------------------- FUNCTION --------------------------  */
/* Do    :                                                                    */
/*                                                                            */
/* -------------------------------------------------------------------------- */
void minor(int n)
{
int      row;
int      col;
double f;

double pbA    [MXR][MXC];mR mA    ={MXR,MXC,&pbA    [0][0]};
double pbminor[MXR][MXC];mR mMinor={MXR,MXC,&pbminor[0][0]};

                     mA.rows=n;                   mA.cols= n   ;
                 mMinor.rows=n-1;             mMinor.cols=(n-1);
/*-------------------------------- PROGRAM ---------------------------------- */
  rnd_mR(&mA,9);
  row = rndp0_I(n);         /* c   */
  col = rndp0_I(n);

  clrscrn();
  printf("                                                     A :\n");
  p_mR(&mA);

  minor_mR(&mA, &mMinor, row, col);
  printf("\n\n                                            mMinor(%d,%d) :\n",
          row+1,          /* math */
          col+1);
  p_mR(&mMinor);
}

void hello(void)
{
  printf("\n Freeware by : xhunga bernard 06000 Nice France.\n");
  printf("\n                                                  ");
  printf("\n            Find a minor matrix of mA             ");
  printf("\n            *************************           \n");
  printf("\n The size of mA : 2x2 ... 4x4.                  \n");
  printf("\n           ex : \"minorf.exe\"                  \n");
  printf("\n You can choose the size :                      \n");
  printf("\n           ex : \"mminorf.exe 2\" -> mA 2x2       ");
  printf("\n                \"mminorf.exe 3\" -> mA 3x3       ");
  printf("\n                \"mminorf.exe 4\" -> mA 4x4       ");
  printf("\n                                                  ");
  printf("\n Distributed  by :  http://www.simtel.net/        ");
  printf("\n                                                  ");
  printf("\n Press return to continue                          ");
  printf("\n                                                  ");

  getchar();
}

/* --------------------------------- MAIN ----------------------------------- */
int main(int argc, char *argv[])
{
time_t t;
int    n;

/*-------------------------------- PROGRAM ---------------------------------- */
  srand(time(&t));
  hello();
do
{
if( argc == 2 && atoi(argv[1]))
 {  n = atoi(argv[1]); if( n > 4){n=4;}}
else
 {  n = rndp_I(4);}
if( n < 2){n=2;}


  minor(n);


printf("\n Press 'X' Return to stop\n");
} while(toupper(getchar())!='X');

  return 0;
}