I'm looking into trying "Fire Emblem d20," a free RPG which is almost a direct port of the Fire Emblem Video Game. However, it seems there is a lot of math for even basic actions, so I'm looking for a way to expedite those calculations. Obviously, excel could do this, but I'm looking for tools with a little more dedication to this. What tools are available for assisting me in dealing with this math?
Honestly, my answer depends a bit on how much knowledge you have in programming and scripting.
The calculations could easily be done with Excel, the google doc spread sheet, or Matlab.
Matlab might take the most scripting knowledge, but you can end up with a small very easy to use applet for all of your players.