Linear Algebra and the C Language/a0f4

Install and compile this file in your working directory.

/* ------------------------------------ */
/*  Save as :   c00d.c                  */
/* ------------------------------------ */
#include "v_a.h"
/* ------------------------------------ */
void p4_mR(
double **A,
int er,
int dr
)
{
int r;
int c;

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

            printf("%+*.*f ",er,dr,A[r][c]);
            
         printf("\n");
        }          
}
/* ------------------------------------ */
void fun(int r,int c)
{
double **A     = r_mR(i_mR(r,c),9);

  clrscrn();

  printf(" A: p_mR(A,  S10,P2,C8);");
  p_mR(A,  S10,P2,C8);

  printf(" A: p4_mR(A, S10,P2   );\n");
  p4_mR(A, S10,P2);

  f_mR(A);
}
/* ------------------------------------ */
int main(void)
{
time_t t;

  srand(time(&t));
  
   do 
        fun(rp_I(R2)+R2, rp_I(C4)+C2);
        
    while(stop_w());
        
  return 0;
}
/* ------------------------------------ */
/* ------------------------------------ */

Control the size of the columns and the number of digits to display after the decimal point:

Screen output example:

                                                                                       
 A: p_mR(A,  S10,P2,C8);
     +5.00      +6.00      -6.00      -1.00      -9.00 
     -5.00      -6.00      -7.00      -5.00      +2.00 
     -7.00      -3.00      -7.00      -2.00      -3.00 

 A: p4_mR(A, S10,P2   );
     +5.00      +6.00      -6.00      -1.00      -9.00 
     -5.00      -6.00      -7.00      -5.00      +2.00 
     -7.00      -3.00      -7.00      -2.00      -3.00 

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