[GitHub] [incubator-mxnet] kshitij12345 edited a comment on issue #14613: [MXNET-978] Second order gradient support for some unary operators

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kshitij12345 edited a comment on issue #14613: [MXNET-978] Second order gradient support for some unary operators
URL: https://github.com/apache/incubator-mxnet/pull/14613#issuecomment-499977266
 
 
   Thank you very much for the clarification. 
   
   >  I think in MXNet we calculate input gradients based on the variables specified in the autograd.grad() API. In this case y_grad, even if a grad attribute is attached to it, no gradient values will be assigned during the second pass of backward(). Only the second order gradient x.grad is assigned. 
   
   BTW, I was wondering if above should be documented? Mostly probably users won't end up in this situation but still. Your thoughts?

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