something is just so wrong with me.
man, i feel so dumb.
hesistance...ahhh.

thanks eric though. im fine now. haha.
we were smsing each other during the night just now,
and im like stoning in my room, when im supposed to do something effective.
haha but anyway, we were chatting and somehow im kinda okay already.
yeah, so thanks :)


equation of circle:
(x-a) sq + (y-b) sq = r sq
after expansion :
x sq + y sq - 2ax - 2by + a sq + b sq - r sq = 0