## Excel in math and science

### Master concepts by solving fun, challenging problems.

## It's hard to learn from lectures and videos

### Learn more effectively through short, conceptual quizzes.

## Our wiki is made for math and science

###
Master advanced concepts through explanations,

examples, and problems from the community.

## Used and loved by 4 million people

###
Learn from a vibrant community of students and enthusiasts,

including olympiad champions, researchers, and professionals.

## Comments

Sort by:

TopNewestTry differentiating with y :P

Log in to reply

Nice. But since I am not that familiar with calculus, I don't get what this means. Can you....er....explain?

Log in to reply

but you rated at level 2 in calculus . how?

Log in to reply

Hey, if this means d/dx of e^x is e^x, then fine- I got it. But, I thought there was some hidden joke in it. Well, I don't solve too many calculus problems because I know only very basic differentiation, bit of definite integrals and limits. I have to work on it. Getting a level two rating is not too tough. ;)

Log in to reply

Log in to reply

Log in to reply

Log in to reply

Log in to reply