1. Crypto
Encryption
Intro to public key

4. What’s the side of the keyspace for the substitution cipher?

11. END END END

12. Consider the weight update:
Which of these is a correct vectorized implementation?

13. Suppose q is at a local minimum of a function
Suppose q is at a local minimum of a function. What will one iteration of gradient descent do?
Leave q unchanged.
Change q in a random direction.
Move q towards the global minimum of J(q).
Decrease q.

14. Fig. A corresponds to a=0.01, Fig. B to a=0.1, Fig. C to a=1.