More on I/O

Controlling end-of-line

      /* Print the equation coefficients of a*x +b*y +c = 0 */
      printf ("Coefficients: %f, %f, %f\n", a, b, c);

      /* Compute and print the x-intercept */
      printf ("x-intercept: ");
      if (a != 0)
      { printf ("%f, ", -c/a);
      }
      else
      { printf ("none, ");
      }

• an expression can be input to printf

• the result of the expression, or "none" are printed on the current line