kExercise 5.4 Table of reciprocals, squares, cubes, and fourth powers.

Exercise 5-4. Define a two-dimensional array, data[11][5] , of type double. Initialize
the elements in the first column with values from 2.0 to 3.0 inclusive in steps of 0.1.
If the first element in a row has value x, populate the remaining elements in each row
with the values 1/x, x2, x3, and x4 . Output the values in the array with each row on a
separate line and with a heading for each column.

 

//Exercise 5.4 Table of reciprocals, squares, cubes, and fourth powers.
#include <stdio.h>

int main(void)
{
  const size_t nrows = 11;              // Number of rows in the array
  const size_t ncols = 5;               // Number of columns in the array
  double data[nrows][ncols];            // Stores data values
  double value = 2.0;
  size_t row = 0 ;                 // Value to be stored in array
  size_t col = 0 ;

  for( row = 0 ; row < nrows ; ++row)
    {
    data[row][0] = value;
    data[row][1] = 1.0/data[row][0];               // 1/x
    data[row][2] = data[row][0]*data[row][0];      // x*x
    data[row][3] = data[row][2]*data[row][0];      // x*x*x
    data[row][4] = data[row][3]*data[row][0];      // x*x*x*x
        value += 0.1;
  }


  printf("            x  ");
  printf("          1/x  ");
  printf("          x*x  ");
  printf("         x*x*x ");
  printf("        x*x*x*x");

    for( row = 0 ; row < nrows ; ++row)
  {
    printf("\n");
    for( col = 0 ; col < ncols ; ++col)
      printf("%15.4lf", data[row][col]);
  }

  printf("\n");
    return 0;
}