   advanced maths and suchs
  I am trying to learn about fourier transforms, numerical integration and root solving, and advanced theory of polynomials. Does anyone know of any good books or websites for either of these? 
  I do remember seeing a section with about 3 articles on fourier stuff in the gamedev math and physics article section. ;  Do you want mostly theory or implimentation details?http://www.eskimo.com/~jbm/ballistics/rk.html -> Runge Kutta integration schemes (including simultaneous equations, which can be hard to find)What do you mean by root solving? ;  thanks...I mean numerical root solving; Newton's method, bisection, et cetera. I guess I want theory mostly. I like to learn the concepts and fail at implementing it on my own before I read about how to do it.   [edited by - vanillacoke on July 31, 2003 11:17:52 PM];  jeez...that eskimo site is insane. There are so many equations for the second order one... ;  It''s dealing with second order coupled differential equations.  With Runge Kutta integration, you determine various numbers of estimates of the velocity and position (in each dimention, for each set of variables).  In this case, the equations are fourth order Runge Kutta (which happens to use 4 estimates per variable, though that''s not what 4th order means), and there are two simultaneous sets of variables being integrated. 4 * 4 = 16 estimates + 4 estimate averaging steps = 20 equations per timestep.It''s not really that daunting once you have some idea why you''re doing it... and that site really isn''t intended to be an introduction to numerical integration.  I just gave the link in case that''s what you were looking for.Stick with Backwards Euler or Leapfrog at first.  They''re much simpler and easier to code and understand.A quick scan of my bookmarks doesn''t reveal any promising intos to  numerical integration (or any of your other requests).  Your best bet is google, and searching for what you want + "Introduction".  There''s probably lots of useful university lecture slides out there... 