# NumPy Tutorials and Examples for Beginners NumPy is a Python package which stands for ‘Numerical Python’. It is the core libraryfor scientific computing, which contains a powerful n-imensional array object, providetools for integrating C, C++ etc.

In this page, we have written some numpy tutorials and examples, you can lean how to use numpy easily.

## Understand numpy.nonzero() with Examples – NumPy Tutorial

numpy.nonzero() function can return the indices of the elements that are non-zero in a numpy ndarray. In this tutorial, we will use some examples to help you understand how to use it.

## Fix numpy.frombuffer() ValueError: buffer size must be a multiple of element size – NumPy Tutorial

In this tutorial, we will introduce you how to fix ValueError: buffer size must be a multiple of element size error when using numpy.frombuffer().

## NumPy Array to Bytes and Bytes to NumPy Array – NumPy Tutorial

In this tutorial, we will introduce you how to convert a numpy array to bytes or bytes to numpy array. If you plan to use lmdb to save a numpy array, you should read it.

## Convert NumPy Array Float to Int: A Step Guide – NumPy Tutorial

Sometimes, we often need to convert a float numpy array to int. In this tutorial, we will use an example to show you how to convert.

## Understand numpy.linspace() with Examples – NumPy Tutorial

In order to split a sequence from start and end, we can use numpy.linspace() function. In this tutorial, we will use some examples to show you how to use it.

## Unit-normalize a NumPy Array: A Practice Guide – NumPy Tutorial

We often need to unit-normalize a numpy array, which can make the length of this arry be 1. In this tutorial, we will introduce you how to do.

## Understand numpy.linalg.norm() with Examples: Calculate Matrix or Vector Norm – NumPy Tutorial

In this tutorial, we will introduce how to use numpy.linalg.norm() in python. It can allow us to calculate matrix or vector norm easily.

## Convert Boolean to 0 and 1 in NumPy – NumPy Tutorial

Sometimes, we need convert a boolean array to 0 and 1. In this tutorial, we will introduce you how to do.

## Sort Numpy Array in Descending Order – A Simple Guide – NumPy Tutorial

We can not sort a numpy array in descending order directly. In this tutorial, we will introduce you how to do.

## numpy.flip(): Reverse the Order of Elements in Array – NumPy Tutorial

In this tutorial, we will use some examples to show you how to use numpy.flip() function correctly. There is an important thing you must concern.