Equation editor is not working, but here is a given series The sum from 1 to n o

Question

Equation editor is not working, but here is a given series

The sum from 1 to n of: (i)^-i

Below is a java method that computes the sum of the series.

public double solve(int n) {
   double answer = 0;
   for(int i=1; i<=n; i++) {
        answer +=Math.pow(Math.sqrt(i), -i);
   }
   return answer;
}

HOWEVER this method does not return a result that is completelyaccurate. I know that it is a problem with floating point numbers,but:
a) What is the exact source of the problem?
(Is it math.pow and math.sqrt??)
b) How can I correct the code to return accurate results

Thanks in advance

Explanation / Answer

Math.sqrt is the exact source of problem... please check in which variable you are getting the value ofthe answer is it a double type or not?

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