I about me

구동사: 동사 + 전치사/ 부사look at~을 보다ex) Look at this robot. look for + 명사(명사) 을 찾다ex) What are you looking for?ex) I'm looking for my diamond ring. (vs. I find it.) look after ~을 돌보다ex) He looks after his son during the day.ex) Bora can look after herself. look up(사전, 인터넷) ~을 찾아보다.ex) Just look it up in a dictionary. look up to~을 우러러보다.ex) Kids look up to you. You need to behave properly. look down on~..

A = np.array([ [1, 2, 3], [4, 5, 6], [7, 8, 9]])B = np.array([ [0, 1, 2], [2, 0, 1], [1, 2, 0]])덧셈A + B# arrray([1, 3, 5]# [6, 5, 7]# [8, 10, 9])스칼라곱5 * A# arrray([5, 10, 15]# [20, 25, 30]# [35, 40, 45])두 행렬의 곱A @ B요소별 곱하기A * B# arrray([0, 2, 6]# [8, 0, 6]# [7, 16, 0])