 
   deterministic difference equations (w13diff.m)
  deterministic difference equations (w13diff.m)   random walk with decay (w13dkrw.m)
  random walk with decay (w13dkrw.m)
 
   random walk demo (w13rw.m)
  random walk demo (w13rw.m)   brownian bridge demo (w13bridge.m)
  brownian bridge demo (w13bridge.m)
 
 
 
 
   brownian motion (link)
  brownian motion (link)   random walk info (link)
  random walk info (link)   ballot problem with demo (link)
  ballot problem with demo (link)
