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Tag: 2D

Allocating and deallocating 2D arrays dynamically in C and C++

In this article we will see how to allocate and deallocate 2D arrays dynamically using new / delete and malloc / free combinations. Suppose we want to create a 2D array using pointers on heap either using new or malloc. It should function like this, Advertisements int row = 2; int col = 3; int ** …

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How to Reverse a 1D & 2D numpy array using np.flip() and [] operator in Python

In this article we will discuss different ways to reverse the contents of 1D and 2D numpy array ( columns & rows ) using np.flip() and [] operator. Reverse 1D Numpy array using [] operator trick First of all import numpy module i.e. Advertisements import numpy as np Now suppose we have a numpy array …

How to Reverse a 1D & 2D numpy array using np.flip() and [] operator in PythonRead More

Create an empty 2D Numpy Array / matrix and append rows or columns in python

In this article we will discuss how to create an empty matrix or 2D numpy array first using numpy.empty() and then append individual rows or columns to this matrix using numpy.append(). Before moving forward, let’s have a quick look at the two functions which we are going to use in this article, Advertisements numpy.empty() numpy.empty(shape, …

Create an empty 2D Numpy Array / matrix and append rows or columns in pythonRead More

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