\begin{verbatim}
#include <stdio.h>  // For the printf prototype
#include <string.h> // For the sscanf prototype
#include <stdlib.h> // For the exit prototype
#include <math.h>   // For the sin prototype
#include "my_stuff.h" // For the my_function prototype

int main(int argc, char ** argv)
{
    int n = 12;
    int i;
    float c = 2.7;
    float x, y;

    for (i = 0; i < n; i++) {
        x = (float)i/n * 4.0;
        y = my_function(x, c); // Mystery function ...
        printf("%3d %11.7f %11.7f\n", i, x, y);
    }

    return 0;
}
\end{verbatim}
