Expert Contributors Articles

Vikram Gupta

Updated on May 22, 2025

A repository (or repo) is a centralized location where project files and resources are stored. It allows for collaboration, version control and organization of a software system. Here’s how a repository works and how to create your own.

Mitchell Telatnik

Updated on May 22, 2025

A firewall is a security device that monitors and regulates incoming and outgoing network traffic based on a set of rules. Here’s how firewalls work, their advantages, main types and common applications.

Michael Galarnyk

Updated on May 22, 2025

This Python dictionary tutorial covers how to define and access values in a dictionary, how to iterate through a dictionary and various dictionary methods.

Hailley Griffis

Updated on May 22, 2025

Onboarding is the process of integrating a new employee into the organization by familiarizing them with relevant tools, workplace policies and the company culture. Here’s why it matters and some examples to consider.

Claudiu Clement

Updated on May 22, 2025

Standard deviation measures the variability of data in relation to the mean, while standard error measures the variability of different sample means. Take a closer look at how to calculate each and the main differences between the two.

Nicolai Berg Andersen

Updated on May 22, 2025

Here’s a hands-on tutorial to help you create your own version of the classic snake game with Processing and Java.

Michael Galarnyk

Updated on May 22, 2025

The empirical rule, also known as the 68-95-99.7 rule, states that almost all the data in a normal distribution falls within three standard deviations of the mean. Take a deeper dive into the different aspects of the rule.

Adam Thomas

Updated on May 22, 2025

A Gantt chart is a chart that depicts tasks as horizontal bars, with the length of each bar representing how long a task will take. Here’s an overview of a Gantt chart’s key components, benefits, disadvantages and dependencies.

Parag Radke

Updated on May 22, 2025

Probability statistics measures the likelihood of an event happening. Here are the theories and statistics you need to know for machine learning.

Katy Hagerty

Updated on May 22, 2025

An introduction to solving Level 1 of the secretive Google Foobar coding challenge, and a breakdown of the problems.