|
|
|
|
|
|
|
In the second instance, the display function displays the result of an arithmetic computation:
printf ("%f", (10.2 + 12.0 + 13.2) / 3);
Here you hand the printf function a character string and an
arithmetic expression. The character string, in this example, consists
entirely of a print specification,
%f, marked as such by a
percent sign, %. The %f print specification tells C that a
floating-point number is to be displayed. In the example, the particular
floating-point number to be displayed is provided by the expression
(10.2 + 12.0 + 13.2) / 3.
Thus, the print specification is paired with an arithmetic expression:
*-------*
| |
| |
v -------------------------
printf ("%f", (10.2 + 12.0 + 13.2) / 3));