Monday, November 19, 2007

Derivatives Are Free. Integrals Are One Baht Each

If you are learning calculus and don't know how to do basic calculus, you can go to and let their computers do the work.

Derivatives, polynomials multiplication and division are free. Integrals can be bought for $25 for 900 integrals. (If you don't pay, you won't see a step-by-step explanation of the integral. You will see the final result though.)

An example of a derivative:

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