/* Lecture #2 Demo
 *
 * Precision
 *
 * This computation is named for Cleve Moler.
 */
#include<stdio.h>
#include<math.h>

int main()
{
        float a = 4.0 / 3.0;
        float b = a - 1;
        float c = b + b + b;
        float d = c - 1;

        printf("%e\n", d);
	printf("%f\n", log(d) / log(2));
}