In this tutorial, we introduce how to solve error: NLTK Resource punkt not found, you should download punkt resource by nltk. You can learn how to fix this error by reading our tutorial.

## A Simple Way to Change the User Agent in Wget – Wget Tips

In this tutorial, we introduce how to set user-agent in wget, which is very important tips for using wget. You can learn how to set it by following our tutorial.

## Best Practice to Use wget in Windows 10 – Wget Tips

In this tutorial, we introduce how to use wget in windows 10, you can use this tool to crawl and save web page. You can learn how to do by following our steps.

## A Simple Guide to Iterate Through Dictionary in Python – Python Tutorial

In this tutorial, we discuss how to iterate through a python dictionary, we can iterate through keys and values, we also can sort it. you can learn how to do by following our tutorial.

## List All English Stop Words in NLTK – NLTK Tutorial

In this tutorial, we write an example to show all english stop words in nltk, you can use these stop words in your application and you also can edit our example code by following our tutorial.

## Install NLTK on Ubuntu Step by Step – NLTK Tutorial

In this tutorial, we introduce how to install and test nltk on ubuntu system, we can use pip command to install, you can start to use it to process nlp right now.

## What is Sample Variance and How to Compute it in Numpy – Numpy Tutorial

In this tutorial, we discuss what is sample variance and how to calculate it in numpy, you can learn how to do by referring our tutorial.

## Why numpy.var() can be Inaccurate When Computing Matrix Variance? – Numpy Tips

In this tutorial, we write an example to discuss why numpy.var() can be inaccurate when computing matrix variance in numpy, you can learn how to compute matrix variance correctly by our this tutorial.

## Calculate Average, Variance, Standard Deviation of a Matrix in Numpy – Numpy Tutorial

In this tutorial, we introduce how to calculate the average, variance and standard deviation of a matrix in numpy, they are common used in many applications, you can learn how to do by referring our tutorial.

## Calculate Dot Product of Two Vectors in Numpy for Beginners – Numpy Tutorial

In this tutorial, we write an example to show how to calculate dot product of two vectors in numpy, we should use np.dot() function and can not use * operation. You can learn how to do by following our tutorial.