Machine Learning, Deep Learning, Towards Data Science.
This means that 3(5 + 3) is the same as 3*5 + 3*3 and that A(B+C) is the same as A*B + A*C. 4. Identity Matrix The Identity Matrix is a special kind of Matrix but first, we need to define what an Identity is. The number 1 is an Identity because everything you multiply with 1 is equal to itself.