What do we actually need to compute for Z_wb?
Hello @ajaykumar3456,
It has the same definition as in exercise 2 (UNQ_C2), and if you go back to the description of exercise 2, you can see this:
Hope this helps!
Raymond
Thanks, Raymond. I finished it
That’s good!
Raymond
Hey @rmwkwok instead of calculating Z_wb, can’t we just use f_wb = sigmoid(np.dot(X[i],w)+b) directly and avoid the extra loop?