C3W2_Vanishing_Gradients_Vanishing and Exploding Gradient Conditions

[vemula_suman]

Hi,
I have one doubt about statements from lab file.

seems ,they are wrong.

please confirm thank you

[jyadav202]

Hi!
The explanation in the lab is correct.
As you will see in the example that the derivative of \sigma is bounded at 0.25
.
This makes the vanishing gradient issue occur when abs(largest eigenvalue) goes lower than 1/0.25 = 4

[vemula_suman]

Thank you