#include <stdio.h>
#include <math.h>
 
int main(void) {
	double n = 3;
 
	printf("n == %9f\n"
	       "n+1 == %9f\n"
	       "three times n == %9f\n"
	       "twice n == %9f\n"
	       "n squared == %9f\n"
	       "half of n == %9f\n"
	       "square root of n == %9f\n"
	       , n, n+1, 3*n, n+n, n*n, n/2, sqrt(n));
 
	printf("n                == %9f\n"
	       "n+1              == %9f\n"
	       "three times n    == %9f\n"
	       "twice n          == %9f\n"
	       "n squared        == %9f\n"
	       "half of n        == %9f\n"
	       "square root of n == %9f\n"
	       , n, n+1, 3*n, n+n, n*n, n/2, sqrt(n));
 
	return 0;
}

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