Hi,

In exercise 1, the instruction is to # Step 2.A: select the "t"th time step vector from X

However, the code X[:,t,:] gives a matrix of all the "t"th time steps of all the training examples. This is a matrix.

Is my understanding correct? or does this slicing method actually returns just returns a vector with the value of the "t"th time step?

Thank you

Bachar