Sum of a series
![Task](http://static.miraheze.org/rosettacodewiki/thumb/b/ba/Rcode-button-task-crushed.png/64px-Rcode-button-task-crushed.png)
You are encouraged to solve this task according to the task description, using any language you may know.
Display the sum of a finite series for a given range.
For this task, use S(x) = 1/x^2, from 1 to 1000.
C++
#include <iostream> double f(double x); int main() { unsigned int start = 1; unsigned int end = 1000; double sum = 0; for( unsigned int x = start; x <= end; ++x ) { sum += f(x); } std::cout << "Sum of f(x) from " << start << " to " << end << " is " << sum << std::endl; return 0; } double f(double x) { return ( 1 / ( x * x ) ); }