<p>Here’s the thing – if you major solely in mathematics, you probably will want to go to graduate school if you want the best career options. A math major can do several things if having significant background in fields other than just math, given most other majors have comparatively very low sophistication in mathematical techniques. </p>
<p>However, a math enthusiast who did nothing else and knows nothing else (for instance, didn’t do something like pick up lots of CS knowledge along the way) generally has limited career options. </p>
<p>Definitely it isn’t an easy major, but there are plenty of very bright people who do very well here in the department. Also, Berkeley’s math faculty is some of the most renowned in the nation, and really isn’t second to any – their recommendations and support can help immensely in getting you into graduate school, though they aren’t by any means easy to impress. </p>
<p>Several good things to study with math: biology, physics, computer science, IEOR, electrical engineering (especially signal processing), economics (e.g. econometrics), statistics (goes along with economics for instance). </p>
<p>Figure out what you’re interested in, and study that! That simple. But you have to be aggressive in figuring out what you’re into.</p>
<p>EDIT: If you’re careful with the professors you take courses with, you can get a good math GPA. What’s mroe, having a near 4.0 in math looks pretty damn impressive to anyone. And last, math majors tend to do very well on things like the LSAT. I know one guy who just missed a perfect on it, and he’s one of the brighter math majors I know.</p>