int main(void) {
double area, area2; /* Store result in area */
double a, b; /* Left and right endpoints */
int n; /* Number of trapezoids */
double h; /* Trapezoid base width */
printf("Enter a, b, and n\n");
scanf("%lf", &a);
scanf("%lf", &b);
scanf("%d", &n);
h = (b-a)/n;
area = Trap(a, b, n, h);
if(n%2 == 0){
area2 = Simp(a, b, n, h);
printf("With n = %d parabolas, our estimate\n", n);
printf("of the area from %f to %f = %.15f\n",
a, b, area2);
double abs = area - area2;
int num = fabs(abs);
printf("The absolute vale of the difference between %f and %f is %d.", area, area2, num);
}
printf("With n = %d trapezoids, our estimate\n", n);
printf("of the area from %f to %f = %.15f\n",
a, b, area);
main();
return 0;
} /* main */
int main() {
float delta, b, x, N;
float Res1, nElements;
N = 10;
delta = 0.1;
x = 3;
Res1 = 0.0;
for(b = 0; b < x; b += delta) {
printf("%f\t%f\n",b,Res1);
Res1 += Simp(b,b+delta,N);
}
return 0;
}
