60 [51, 52, 53, 54, 55]]) |
60 [51, 52, 53, 54, 55]]) |
61 |
61 |
62 Pause the video here and make sure you have the arrays A and C, |
62 Pause the video here and make sure you have the arrays A and C, |
63 typed in correctly. |
63 typed in correctly. |
64 |
64 |
|
65 {{{ Pause the recording and type the arrays A,C }}} |
|
66 |
65 Let us begin with the most elementary thing, accessing individual |
67 Let us begin with the most elementary thing, accessing individual |
66 elements. Also, let us first do it with the one-dimensional array |
68 elements. Also, let us first do it with the one-dimensional array |
67 A, and then do the same thing with the two-dimensional array. |
69 A, and then do the same thing with the two-dimensional array. |
68 |
70 |
69 To access, the element 34 in A, we say, |
71 To access, the element 34 in A, we say, |
70 |
72 |
71 :: |
73 :: |
72 |
74 |
73 A[2] |
75 A[2] |
74 |
76 |
|
77 A of 2, note that we are using square brackets. |
|
78 |
75 Like lists, indexing starts from 0 in arrays, too. So, 34, the |
79 Like lists, indexing starts from 0 in arrays, too. So, 34, the |
76 third element has the index 2. |
80 third element has the index 2. |
77 |
81 |
78 Now, let us access the element 34 from C. To do this, we say |
82 Now, let us access the element 34 from C. To do this, we say |
79 :: |
83 :: |
80 |
84 |
81 C[2, 3] |
85 C[2, 3] |
|
86 |
|
87 C of 2,3. |
82 |
88 |
83 34 is in the third row and the fourth column, and since indexing |
89 34 is in the third row and the fourth column, and since indexing |
84 begins from zero, the row index is 2 and column index is 3. |
90 begins from zero, the row index is 2 and column index is 3. |
85 |
91 |
86 Now, that we have accessed one element of the array, let us change |
92 Now, that we have accessed one element of the array, let us change |