Damage types
http://wiki.eveonline.com/en/wiki/Damage_types#NPC_damage_Types
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Stacking penalty mod for Nth module or rig=
0.5 ^ [ ((N-1) / 2.22292)^2 ] (number is rounded)
1st: 100%
2nd: 86.9%
3rd: 57.1%
4th: 28.3%
5th: 10.6%
note: modules with highest bonuses are calculated first.
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Lock time (seconds) =
[40000/ScanRes] / [asinh(SigRadius) ^2]
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Standing to use agents:
Lv2 = 1.0
Lv3 = 3.0
Lv4 = 5.0
Lv5 = 7.0
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Skill training rate =
Primary attrib. + [0.5x Secondary attrib.] SP per minute
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hardener calculation:
newres = res+[(1-res)*(hardener*stackpen)]
where newres is your current resistance after fitting the hardener, res is what you had before, hardener is the hardeners resist bonus, and stackpen is stacking penalty factor