include stdio include stdlib include math define 200 double funcia_1 d

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#define N 200

double funcia_1(double x);
double funcia_2(double y);

double Integral(double a, double b, double (*funcia)(double));

int main(void)
{
	printf("Integral 1 = %lf\n",Integral(2,7,funcia_1));
	printf("Integral 2 = %lf\n",Integral(-3,1.5,funcia_2));
	system("PAUSE");
	return 0;
}

double funcia_1(double x)
{ 
	 return sqrt(x*x-2)/x;
}

double funcia_2(double y)
{
	return sin(y)*sin(y)*sin(y);
}

double Integral(double a, double b, double (*funcia)(double))
{
	double h,sum;
	int i;
	sum=funcia(a);
	h=(b-a)/N; /*шаг*/
	for(i=1;i<N;i++) 
      if((i+1)%2==0)
		sum+=4*funcia(a+h*i);
	  else
	  	sum+=2*funcia(a+h*i);
    sum+=funcia(b); 
	return sum*=(h/3); 
}