# Re: Sum of infinite series - 1/n^2

1. Oct 3, 2008

### obelu

Please I have a similar problem, how can I compute the sum of this infinite series:

SUM(X / (Y^X) ); where X(i)>0

2. Oct 3, 2008

### sutupidmath

$$\sum\frac{X}{Y^X}$$ X(i)>0, what is X, what is Y?

3. Oct 3, 2008

### obelu

Y is a constant, while the X's are increasing from zero to infinity

4. Oct 5, 2008

### HallsofIvy

Staff Emeritus
Knowing only that Xn is "some" increasing sequence there is no way to find the sum.