Frequently Asked Questions

What is Mathhammer 40k?

Warhammer is a game of statistics and luck. Statistics because you roll a bunch of dice quite a few times, and luck because you don’t roll thousands of dice thousands of times. Mathhammer is the mathematical application of probability to those dice rolls. Because you are rolling comparatively few dice (compared to thousands), Mathhammer on the tabletop means that you can have an expectation of what “should” happen, but no guarantees.

The Good:

Because you know what amount of damage your units should be able to do, and what amount of damage they can take before dying, you have a better chance to position them in situations where they will be able to kill your opponent without they themselves being killed.

The Bad:

Mathhammer is based on what will happen over thousands of dice rolls. The closest you could come to that is an IG blob of 50 models operating under “First rank fire, second rank fire.” This would net you 140 shots (remember, sergeant’s shots are not increased). Even 140 shots is a small sample size for statistical purposes. At any time the dice can run hot or cold. So, while you have an expectation of what “should” happen, quite frequently this expectation will not be met.

The Ugly:

If you’ve played the game for any length of time, you’ve seen a full squad of space marines rapid fire on a single hormagaunt, and yet the hormagaunt lives. Or seen two terminators fall to two shotgun blasts. These things can and do happen. Mathhammer does not predict or refute these occurrences. What Mathhammer does is tell you what to expect (“what to expect” is different than “what will happen”) over the course of a great many dice rolls.

Overdependence on Mathhammer can cause great annoyance when the dice are against you. Always remember that Mathhammer makes no guarantees. It just allows you to place your little models with a better understanding of what kind of outcome to expect. Of course, over the long run, this should allow you to win more games!

How is the webpage set up?
The page is divided into three worksheets: Shooting at Infantry (including Monstrous Creatures), Melee against Infantry (also including Monstrous Creatures), and Attacking Armor. For our purposes “Armor” is defined as anything with Front, Side, and Rear armor values. Infantry is defined as any other model, which is why Monstrous Creatures are included.
How does each worksheet work?
Quite simply, you put in information for the attacking model first. You can hover your mouse over an input area and see what information goes in that location. The attacker’s information goes first (attacker info boxes have green borders). Target’s information comes next (target info boxes have blue borders). Then you check off any relevant boxes and adjust any drop down menus, and you get your data output in the black or grey boxes with white numbers.
Why are you not showing probability? / Why are you showing total wounds inflicted?
If you know enough about probability, you can calculate this stuff yourself. And really, what most people are interested in is how well your models should perform, and on the tabletop this comes down to final wounds taken after all rerolls and armor saves. Thus this is the final output box.
Will you include a “poison” checkbox?
Short answer is no. Longer answer is no because all the effects of poison are already available on the worksheet. Poison 4+ means set the target toughness equal to the weapon strength. For Poison 3+, set the toughness 1 lower than the weapon strength. For Poison 2+, set the toughness 2 lower than the weapon strength.  Have Poison and strength equal to or greater than target toughness? Click on “reroll all wounds.” Designing a radio button or dropdown list would just overly complicate the coding when the functionality is already there. Sorry if this upsets you.
Will you create drop down menus with model statistics?
Unfortunately not. Games Workshop owns the copyright for all their products, including Names and Statistics. I could not publish either without violating their copyright. Sorry, you’ll just have to enter the data as you find it in your codex. (You do have the codex, right?)
I found an error!
Great! Not “Great!” that there is an error, but “Great!” that it has been caught. Send it to me and I’ll fix it as quickly as I can. Most of this information has been taken from a spreadsheet I spent the better part of a year making. Not all of the formulae translate smoothly from Excel.
Can I contact you with a suggestion or problem? (or even a compliment???)
Of course! Please use the form below. I’ll reply as soon as I can.

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