hahahahahah TT....ping pong......i knew it was coming..... ok let me make it short....have to wake up early tomorrow morning....as usual...."freaking life" ko sawal chha...hahahahahaha f(x)=1 (oh, how i imagined 1 being a function of x hehe) ...pretty simple huh? hehehe.....i thought u could do better than that though. i was referring to standard functions. hehe... sinx= function of x. cosx=ditto lnx=ditto e^x==ditto. so all of them are dependent. the dependency you were talking abt cannot be avoided here completely. and that "not too bad" thing...may be for ya...not for PAT i m sure so let's drop it right away....moreover his proff told him to go for any "approximate" solution (TT you did not read all the postings did u? too bad hehe) alrity...have to hit the bed now for sure....will see ya tomorrow .... have fun in canada i know its one heck of a place to be in.. and convey my regards to your VIRTUAL gf.... g;nite Loote P.S. mann....i wonder if George bush would be president if his name was "Doggy bush" :S