Are you talking about the formula/template that is used for building weapons? if so:
[spoiler]
Each class of weapons is allotted a certain about of points:
Size- light = 1
- 1-handed = 2
- 2-handed = 3
Type- simple = 1
- martial = 2
- exotic = 3
The "base" for weapons = 1d3/20 . spend points on each of the following:
- each die increase
- each increase in treat range
- each increase in crit multiplyer
- reach
- special attack
- other special qualities
*double-headed weapons have each side bought separately, using the same point pool*
special note: I have absolutely no idea where I picked that up from, or who said it, or anything ..... I just stumbled across it one day, and committed it to memory (
after I double-checked all the PHB weapons to make sure that it worked, of course). Also note that there are a handle-full of cases where it takes some juggling to make it all fit (since I didn't come up with it, I've had to kinda learn the
exact proper application as I go along)[/spoiler]
if that's not what you're talking about, then you'll have to be more specific.