What is a zero vector? A zero vector is a vector that has zero magnitude and it points to undefined direction. For an n-dimensional zero vector, all the n components of the vector will be zero. For example, v1 is a two-dimensional zero vector and v2 is a...

What are scalars and vectors in linear algebra? In linear algebra, a scalar is a single number that can scale or stretch a matrix or a vector. For example, the numbers 2, -3, 1.2 are all scalars. A vector, on the other hand, is a list of numbers. And the number of...

Let’s say we want to create a NumPy array of a particular shape that is filled with random numbers. We can use the numpy.random.random() function for that purpose. For example, we can use the following Python code to create a NumPy array of shape (2, 3) that is filled...

Let’s say we want to create a NumPy array with a specific shape. And we want to fill the entries of the NumPy array with a specific number. We can do so easily using the numpy.full() function. For example, we can use the following Python code to create a NumPy array...

Let’s say we want to create a NumPy array of a particular shape that is filled with all zeros or all ones. We can do so easily using the numpy.zeros() or numpy.ones() function. For example, we can use the following Python code to create a NumPy array of shape (2, 3)...