PPT Slide

#define SIZE 1000

shape [SIZE]span;

main(){

double sum;

double width;

with(span) {

double x:span;

x = (pcoord (0) + 0.5) * 1.0/SIZE;

sum = (+= (4.0/(1 + x*x)));

}

sum *= 1.0/SIZE;

printf("Estimation is %lf\n", sum);

}