Calculations Page?

I have searched for it and have been unable to find it... but i want wondering if there was some way we could get a thread put somewhere on the forum containing formulas for calculating all the different "things" in home brewing. Such as, IBA, Ab/v, Ab/w, etc.

I am interested in the actual math that goes into these calculations and am unable to find it. I can find countless links to Java coded converters and others, but i just though that at least for newbs, having a sticky with all that information readily accessible might be handy.

Check the wiki, I believe a number of the formulas are there.

Edit: beer math