I can appreciate not wanting to click on any external links. Maybe I can explain it well enough here.

We have the formula for figuring out the present value of an annuity here:
PVoa = PMT [(1 - (1 / (1 + i)n)) / i]

I think it is straight forward when the interest is comounded annually and the withdrawals are done on an annual basis. Where I am getting confused is what values to use for "i" and "n" if the interest is compounded daily and the withdrawals are done on a monthly or semi-annual basis. What numbers do we plug in for "i" and "n" in that case?

Thanks again.