Linear Algebra and the C Language/a0fh


Install and compile this file in your working directory.

/* ------------------------------------ */
/*  Save as :   c00a.c                  */
/* ------------------------------------ */
#include "v_a.h"
/* ------------------------------------ */
/* ------------------------------------ */
double **X_r_mR(
double **A,
int      n
)
{
int      r;
int      c;

  for     (r=R1; r<A[R_SIZE][C0]; r++)
 	  for (c=C1; c<A[C_SIZE][C0]; c++)

                    A[r][c] = r_I(n);
                    
  return(A);
}
/* ------------------------------------ */
/* ------------------------------------ */
void fun(int r, int c)
{
double **A = r_mR(i_mR(r,c),9);

  clrscrn();

  printf(" r_mR() : positive and negative numbers \n\n" 
         " A[R%d,C%d] :",rsize_R(A),csize_R(A));
  p_mR(A,S4,P0,C5);
   
  f_mR(A);
}
/* ------------------------------------ */
int main(void)
{
time_t t;

  srand(time(&t));
  
  do
        fun(rp_I(R8),rp_I(C9));

  while(stop_w());       

  return 0;
}
/* ------------------------------------ */
/* ------------------------------------ */
Positive and negative numbers:

Screen output example:

                                                                                       
 r_mR() : positive and negative numbers 

 A[R3,C9] :
  -6   +6   -7   +5   +6 
  +2   -8   +9   -9   +6 
  -9   -9   +1   -8   +6 

  -9   +5   -8   -6 
  -4   +9   -3   +9 
  -2   -3   -8   +6 


 Press   return to continue
 Press X return to stop