## all articles
All posts
- AI and Data
Euclidean Distance: What It Is, Formula, and Uses in Python
Euclidean distance is the straight-line measure between two points, obtained by the root of the sum of squared differences; it is the basis of KNN and K-Means.
Read article
Henrico - Infrastructure and DevOps
AWS, Azure, or GCP: Which cloud service to choose?
AWS leads the cloud with 28% of the market, ahead of Azure (21%) and GCP (14%). Compare service types, strengths, and when to use each provider.
Read article
Renata - Programming
Mock Objects: what they are and how to use them in tests
Mock objects are dependency simulations used in unit tests to isolate code, speed up execution and verify interactions without databases or APIs.
Read articleHenrico - Programming
The Ruby language: what it is, syntax, and Ruby on Rails
Ruby is a dynamic, object-oriented language created by Yukihiro Matsumoto, used in web development with Ruby on Rails, automation, and scripts.
Read articleHenrico - Programming
The R language: what it is, what it is for, and how to get started
R is an open-source language for statistics and data visualization, with more than 24 thousand packages on CRAN and central use in data science.
Read articleRenata - Programming
What is CSS? A guide to the web styling language
CSS (Cascading Style Sheets) is the language that defines colors, typography, and layout of HTML pages, used by 62% of devs according to Stack Overflow.
Read articleHenrico - Programming
Java Programming Language: A Complete Guide to Learn
Java is an object-oriented language that runs on any system via the JVM. See how to install the JDK, learn the syntax, and grow in your career.
Read articleHenrico - Programming
Boundary Value Analysis: What It Is and How to Apply It in Testing
Boundary value analysis is the black-box technique that tests the extremes of input partitions, where most software defects concentrate.
Read articleHenrico