1 Objective Questions |
1 Objective Questions |
2 ------------------- |
2 ------------------- |
3 |
3 |
4 .. A mininum of 8 questions here (along with answers) |
4 .. A mininum of 8 questions here (along with answers) |
5 |
5 |
6 1. ``matrix(A) * matrix(B)`` and ``array(A) * array(B)`` are the same. |
6 1. ``array(A) * array(B)`` does matrix multiplication. |
7 |
7 |
8 a. True |
8 a. True |
9 #. False |
9 #. False |
10 |
10 |
11 Answer: False |
11 Answer: False |
12 |
12 |
13 2. ``matrix(A) * array(B)`` does, |
13 2. ``array(A) * array(B)`` does, |
14 |
14 |
15 a. Element wise multiplication. |
15 a. Element wise multiplication. |
16 #. Matrix multiplication. |
16 #. Matrix multiplication. |
17 #. Cannot multiply a matrix object and array object. |
17 #. Cannot multiply a matrix object and array object. |
18 #. Depends on the shape of A and B, if compatible matrix |
18 #. Depends on the shape of A and B, if compatible matrix |
19 multiplication will be done, otherwise element wise |
19 multiplication will be done, otherwise element wise |
20 multiplication. |
20 multiplication. |
21 |
21 |
22 Answer: Matrix multiplication |
22 Answer: Element wise multiplication. |
23 |
23 |
24 3. A and B are two matrix objects. Element wise multiplication in |
24 3. A and B are two array objects. Element wise multiplication in |
25 matrices are done by, |
25 matrices are done by, |
26 |
26 |
27 a. A * B |
27 a. A * B |
28 #. ``multiply(A, B)`` |
28 #. ``multiply(A, B)`` |
29 #. ``dot(A, B)`` |
29 #. ``dot(A, B)`` |
30 #. ``element_multiply(A,B)`` |
30 #. ``element_multiply(A,B)`` |
31 |
31 |
32 Answer: multiply(A, B) |
32 Answer: dot(A, B) |
33 |
33 |
34 4. ``norm(A)`` method determines the, |
34 4. ``norm(A)`` method determines the, |
35 |
35 |
36 a. Frobenius norm |
36 a. Frobenius norm |
37 #. Infinity norm |
37 #. Infinity norm |
48 Answer: False |
48 Answer: False |
49 |
49 |
50 6. The code snippet will work without an error, |
50 6. The code snippet will work without an error, |
51 :: |
51 :: |
52 |
52 |
53 A = matrix([[1, 2, 3, 4], [5, 6, 7, 8]]) |
53 A = array([[1, 2, 3, 4], [5, 6, 7, 8]]) |
54 inv(A) |
54 inv(A) |
55 |
55 |
56 a. True |
56 a. True |
57 #. False |
57 #. False |
58 |
58 |