Problem in Week 4 Assignment #1 EX5

Course Q&A Deep Learning Specialization Neural Networks and Deep Learning
1

I am struggling with how to write the for loop for the Relu activations. My implementation is given below:

for l in range(1, L):
A_prev = A
#(≈ 2 lines of code)
A, cache = linear_activation_forward(A_prev, parameters[‘W’ + str(l)], parameters[‘b’ + str(l)], “relu”)
caches.append(cache)

Please help

2

Hello @ras325
Your implementation is correct. Can you please share your error report so that we can figure out what is not going right?

3

Coursera_1
Coursera_11207×591 80.7 KB

Coursera_2
Coursera_21204×688 86.8 KB

Coursera_3
Coursera_31205×673 96.7 KB

4

Please find my code attached.
Thank You

5

Hello @ras325
Your code for relu activation is right but you have to recheck your implementation for sigmoid activation. [Think: how to implement activation function.]

All the best :+1: