You only have to take the diagnostic exam if you are planning to take some kind of math course like calc at UCLA. Calc isn't a requirement for all majors...so if you are majoring in psychology and passed out of the quantitative reasoning requirement...you might not have to take the test.
...unless you plan on taking a math course for fun/intellectual development?? lol.
By the way...how hard is that diagnostic exam anyway? I took AP stat this year...so I haven't really done any pre-calc stuff since last year.
