a - current rating of item
b - total number of votes for this particular item
c - new rating to update current rating with
Something has rating of a, and total number of votes b. Someone just rated this something at c. I need to recalculate rating a considering new rating c.
"Среднее арифм." obviously wouldn't do it.
Anyone?
![Mr. Green :mrgreen:](./images/smilies/icon_mrgreen.gif)