Thanks for the replies guys.
Anyways, the education system in singapore is quite different from US. Grade 12 in US is the equivalent of JC in singapore. Unfortunately i did not enter JC and went to study at a polytechnic, so i am unable to judge if i have met Digipen's admissions requirements in mathematics.
However if you ask me if i remember anything on Algebra or Geometry, i am sad to say that the answer is no. I do not even know what Calculus is.
I guess i have alot to catch up on if i really want to enroll for digipen or be a game programmer huh.