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microsoft / AI-System

System for AI Education Resource.
https://microsoft.github.io/AI-System/
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An Error by Lecture 3 - Computation frameworks for DNN #35

Closed Vincenwwx closed 2 years ago

Vincenwwx commented 3 years ago

In page 19 by calculation of the gradient of L(x), there is probably an error in the second part for sin(exp(x)+exp(x)^2

Should the gradient be cos(exp(x)+exp(x)^2)(exp(x)+2exp(x)^2), i.e. there is one unnecessary exp in the answer?

Thanks

bc-li commented 3 years ago

Hi Wenxin,

I opened a pull request #37 to change the formula.

Thanks for the issue!