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about the shape of v #11

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j00378808 opened this issue Mar 24, 2021 · 1 comment

j00378808 commented Mar 24, 2021

What's the meaning of For a random vector v (which has the same dimension as
gi)？？According to my understanding,v is a vector ，but gi is a matrix???

Owner

Zhen-Dong commented Apr 26, 2021 •

edited

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Hi, I think by definition the gradient is a vector and the Hessian is a matrix.
Hope this can be helpful for clarification.

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