apeforest commented on issue #15120: [bug] fix higher grad log URL: https://github.com/apache/incubator-mxnet/pull/15120#issuecomment-499599418 > ```python > x_grad = x_grad_mid * y_grad # Note this part. > ``` I don't think this part is correct. Note: your x_grad_mid is dL/dx. So x_grad_mid = y_grad * grad_op(x) Do you meant to write x_grad = grad_op(x) * y_grad?
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