In this article, we will see how to get size of array in Python.
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Table of Contents<\/p>
An array stores a collection of similar elements in a contiguous memory location. In Python, we have a list, an iterable, and a We can perform various operations on arrays. The array size tells how many elements are present in the array. We can use the size of the array to calculate how much memory the array occupies by multiplying the size of the array with the size of individual elements.<\/p>\n Let us now discuss the different methods available to calculate the size of array in Python.<\/p>\n The For example,<\/p>\n Output:<\/p>\n In the above example, we initialized a There is a drawback to this method. If we have a multi-dimensional array, it will not return the size of the array. It will consider every array within the outer array to be a single element and return that number.<\/p>\n We can understand this better with an example as shown below.<\/p>\n Output:<\/p>\n In the above example, we can see that the numpy<\/code> array to work as arrays. <\/p>\nWays to calculate the size of array in Python<\/span><\/h2>\n
Using the
len()<\/code> function<\/span><\/h3>\nlen()<\/code> function returns the length of an iterable like a list, numpy<\/code> array, or string. <\/p>\n\nimport numpy as np\narr = np.array([8,5,6,5])\nlst = [1,2,4]\nprint(len(arr),len(lst))\n<\/pre>\n
numpy<\/code> array and a list and returned their length using the len()<\/code> function.<\/p>\n\nimport numpy as np\narr = np.array([[1,5,3],[1,5,8]])\nlst = [[1,2,5],[5,2]]\nprint(len(arr),len(lst)) \n<\/pre>\n
len()<\/code> functions return the length as 2 and do not count the elements of the inner arrays. <\/p>\n