diff --git a/snippets/transpose_matrix.md b/snippets/transpose_matrix.md index a99aa99d4..4264776cd 100644 --- a/snippets/transpose_matrix.md +++ b/snippets/transpose_matrix.md @@ -3,19 +3,18 @@ title: transpose_matrix tags: matrix,list,zip,intermediate --- +Obtaining the transpose of a matrix making use of `zip()` function. + Python `zip()` function takes the iterable elements as input and returns the iterator. Since zip funtion returns a `zip object`, we can cast it as list wit `list()`. ```py -list(zip([1,2,3],['a','b','c'], [True, False, True])) -# Output: [(1, 'a', True), (2, 'b', False), (3, 'c', True)] +list(zip([1,2,3],['a','b','c'], [True, False, True])) # [(1, 'a', True), (2, 'b', False), (3, 'c', True)] ``` Using `*list`, we can access to each element of the list ```py -[[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12]] -# Output: [[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12]] -*[[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12]] -# Output: [1, 2, 3] [4, 5, 6] [7, 8, 9] [10, 11, 12] +[[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12]] # [[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12]] +*[[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12]] # [1, 2, 3] [4, 5, 6] [7, 8, 9] [10, 11, 12] ``` Combining these two elements we can transpose a matrix. We can access to each row of the matrix using the operator `*` to use them as args of `zip()` function. @@ -23,7 +22,8 @@ Combining these two elements we can transpose a matrix. We can access to each ro ```py def transpose_matrix(l:list): return list(zip(*l)) - -print(transpose_matrix([[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12]])) -# Output: [(1, 4, 7, 10), (2, 5, 8, 11), (3, 6, 9, 12)] +``` + +```py +print(transpose_matrix([[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12]])) # [(1, 4, 7, 10), (2, 5, 8, 11), (3, 6, 9, 12)] ```