Matrix, Dimensions.
will change a bit in your vectorized implementation. Section 2- Vectorized implementation Neural Networks and Deep Learning Previously we had z^[1] equals w^[1] times x plus b^]1], where this was n^[1] by 1. This was n^[1] by n^[0], x was n^[0] by 1, and b was n^[1] by 1. Now, in a vectorized