/* prog3.2_trigs.c */
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include "Triangle.h"

int main(int argc, char *argv[])
  { int i, N = atoi(argv[1]);
    float m1 = 0.0, m2 = 0.0;
    triangle t;
    double x;
    for (i = 0; i < N; i++)
      {
	t = randTriangle();
        x = area(t);
        m1 += ((float) x)/N; 
        m2 += ((float) x*x)/N;
      }
    printf("       Average: %f\n", m1);
    printf("Std. deviation: %f\n", sqrt(m2-m1*m1));
    return 0;
 }