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I want to finish all the exercises in the map from addition to differential calculus, I'd say I'm about half way done.

is there anything I should be aware of? What is khan academy missing?

say if i completed all the differential calculus exercises on khan, is this a good indicator that i know this topic?

Most of the criticism of khan is towards the videos, but i barely use them, and when i do it is only for a minute, i mostly use the hints and Google

I plan on reading a discrete mathematics book / algorithms for programming after I'm done.

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What is the criticism on khan's videos ? I think khan doesn't cover differential calculus very good in the exercises, but it's covered quite good in his videos. –  Kasper Dec 17 '12 at 21:41
that it doesn't cover the topic too well, or doesn't explain everything –  hit Dec 17 '12 at 21:50
I think the videos are ecxcellent. The exercises as well, but on highschool level. Not very much on limits. No implicit differentiation, taylor's theorem in the exercises. –  Kasper Dec 17 '12 at 21:55
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