--- title: Learn Computing from the Experts | The Rheinwerk Computing Blog (6) description: Dive into programming, web development, and more with Rheinwerk Computing Blog! Your go-to resource for expanding your computing knowledge. (6) --- [![Rheinwerk Computing Logo](https://blog.rheinwerk-computing.com/hubfs/computing_logo-header.svg)](https://blog.rheinwerk-computing.com/) [Blog](https://blog.rheinwerk-computing.com) - Books - Get an overview of our wide selection of books on every relevant computing topic. - [General Computing](https://www.sap-press.com/rheinwerk-computing/general-computing/) - [DevOps](https://www.sap-press.com/rheinwerk-computing/devops/) - [Programming Languages](https://www.sap-press.com/rheinwerk-computing/programming-languages/) - [Security](https://www.sap-press.com/rheinwerk-computing/security/) - [Software Development](https://www.sap-press.com/rheinwerk-computing/software-development/) - Book Subscription - Get unlimited access to all Rheinwerk Computing books! - [Programming Subscription](https://sap-press.com/subscriptions/) ![](https://blog.rheinwerk-computing.com/hs-fs/hubfs/How%20to%20Write%20Your%20Own%20Python%20Functions.jpg?width=1000&name=How%20to%20Write%20Your%20Own%20Python%20Functions.jpg) [Featured](https://blog.rheinwerk-computing.com/tag/featured) | Featured article ## [How to Write Your Own Python Functions](https://blog.rheinwerk-computing.com/how-to-write-your-own-python-functions) Functions in Python provide functionality that you or someone else has already pro­grammed. In this post, we’ll teach you how to write your own Python functions. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/how-to-write-your-own-python-functions) # Latest Blog Posts [![How to Navigate Large Worksheets in Excel](https://blog.rheinwerk-computing.com/hs-fs/hubfs/How%20to%20Navigate%20Large%20Worksheets%20in%20ExcelHow%20to%20Navigate%20Large%20Worksheets%20in%20Excel.jpg?height=600&name=How%20to%20Navigate%20Large%20Worksheets%20in%20ExcelHow%20to%20Navigate%20Large%20Worksheets%20in%20Excel.jpg)](https://blog.rheinwerk-computing.com/how-to-navigate-large-worksheets-in-excel) [Marketing and Analytics](https://blog.rheinwerk-computing.com/tag/marketing-and-analytics) ## [How to Navigate Large Worksheets in Excel](https://blog.rheinwerk-computing.com/how-to-navigate-large-worksheets-in-excel) Working with large worksheets in Excel can quickly become frustrating when you can’t see all your data at once. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/how-to-navigate-large-worksheets-in-excel) [![How to Chat with Your Data: The Power of Retrieval-Augmented Generation (RAG)](https://blog.rheinwerk-computing.com/hs-fs/hubfs/How%20to%20Chat%20with%20Your%20Data_%20The%20Power%20of%20Retrieval-Augmented%20Generation%20(RAG).jpg?height=600&name=How%20to%20Chat%20with%20Your%20Data_%20The%20Power%20of%20Retrieval-Augmented%20Generation%20(RAG).jpg)](https://blog.rheinwerk-computing.com/how-to-chat-with-your-data-the-power-of-retrieval-augmented-generation-rag) [Artificial Intelligence](https://blog.rheinwerk-computing.com/tag/artificial-intelligence) ## [How to Chat with Your Data: The Power of Retrieval-Augmented Generation (RAG)](https://blog.rheinwerk-computing.com/how-to-chat-with-your-data-the-power-of-retrieval-augmented-generation-rag) Large language models (LLMs) are often described as massive and all-knowing, and in many ways, they are. They have spectacular abilities. They can... ![Bert Gollnick](https://blog.rheinwerk-computing.com/hubfs/Bert%20Gollnick.jpg) by [Bert Gollnick](https://blog.rheinwerk-computing.com/author/bert-gollnick) [Read More](https://blog.rheinwerk-computing.com/how-to-chat-with-your-data-the-power-of-retrieval-augmented-generation-rag) [![How Do You Measure an Error in a Multilayer Network?](https://blog.rheinwerk-computing.com/hs-fs/hubfs/How%20Do%20You%20Measure%20an%20Error%20in%20a%20Multilayer%20Network_.jpg?height=600&name=How%20Do%20You%20Measure%20an%20Error%20in%20a%20Multilayer%20Network_.jpg)](https://blog.rheinwerk-computing.com/how-do-you-measure-an-error-in-a-multilayer-network) [Artificial Intelligence](https://blog.rheinwerk-computing.com/tag/artificial-intelligence) ## [How Do You Measure an Error in a Multilayer Network?](https://blog.rheinwerk-computing.com/how-do-you-measure-an-error-in-a-multilayer-network) “Error” is a word that doesn’t have many positive connotations. But in our task of teaching an artificial neural network (ANN) to learn, it’s great. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/how-do-you-measure-an-error-in-a-multilayer-network) [![How to Create Your First Ansible Playbook](https://blog.rheinwerk-computing.com/hs-fs/hubfs/How%20to%20Create%20Your%20First%20Ansible%20Playbook.jpg?height=600&name=How%20to%20Create%20Your%20First%20Ansible%20Playbook.jpg)](https://blog.rheinwerk-computing.com/how-to-create-your-first-ansible-playbook) [DevOps](https://blog.rheinwerk-computing.com/tag/devops) ## [How to Create Your First Ansible Playbook](https://blog.rheinwerk-computing.com/how-to-create-your-first-ansible-playbook) *Playbooks* are the entry points for any Ansible project. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/how-to-create-your-first-ansible-playbook) [![Exploring the Basics of Neural Networks](https://blog.rheinwerk-computing.com/hs-fs/hubfs/Exploring%20the%20Basics%20of%20Neural%20Networks.jpg?height=600&name=Exploring%20the%20Basics%20of%20Neural%20Networks.jpg)](https://blog.rheinwerk-computing.com/exploring-the-basics-of-neural-networks) [Artificial Intelligence](https://blog.rheinwerk-computing.com/tag/artificial-intelligence) ## [Exploring the Basics of Neural Networks](https://blog.rheinwerk-computing.com/exploring-the-basics-of-neural-networks) Neural networks are the powerhouses driving modern machine learning, and they appear in almost every cutting-edge AI system. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/exploring-the-basics-of-neural-networks) [![What Are Design Patterns? History, Origins, and Software Development Impact](https://blog.rheinwerk-computing.com/hs-fs/hubfs/What%20Are%20Design%20Patterns_%20History%2c%20Origins%2c%20and%20Software%20Development%20Impact.jpg?height=600&name=What%20Are%20Design%20Patterns_%20History,%20Origins,%20and%20Software%20Development%20Impact.jpg)](https://blog.rheinwerk-computing.com/design-patterns-history-origins-and-impact) [Software Development](https://blog.rheinwerk-computing.com/tag/software-development) ## [What Are Design Patterns? History, Origins, and Software Development Impact](https://blog.rheinwerk-computing.com/design-patterns-history-origins-and-impact) Design patterns are a cornerstone of modern software development—but they didn’t start in programming. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/design-patterns-history-origins-and-impact) [![How to Embed GA4 Tags on a Website](https://blog.rheinwerk-computing.com/hs-fs/hubfs/How%20to%20Embed%20GA4%20Tags%20on%20a%20Website.jpg?height=600&name=How%20to%20Embed%20GA4%20Tags%20on%20a%20Website.jpg)](https://blog.rheinwerk-computing.com/how-to-embed-ga4-tags-on-a-website) [Web Development](https://blog.rheinwerk-computing.com/tag/web-development) ## [How to Embed GA4 Tags on a Website](https://blog.rheinwerk-computing.com/how-to-embed-ga4-tags-on-a-website) When setting up Google Analytics 4 on your website, there are a number of steps to complete. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/how-to-embed-ga4-tags-on-a-website) [![8 Linux Shell Commands for ACL and EA](https://blog.rheinwerk-computing.com/hs-fs/hubfs/8%20Linux%20Shell%20Commands%20for%20ACL%20and%20EA.jpg?height=600&name=8%20Linux%20Shell%20Commands%20for%20ACL%20and%20EA.jpg)](https://blog.rheinwerk-computing.com/linux-shell-commands-for-acl-and-ea) [Linux](https://blog.rheinwerk-computing.com/tag/linux) ## [8 Linux Shell Commands for ACL and EA](https://blog.rheinwerk-computing.com/linux-shell-commands-for-acl-and-ea) Managing file permissions and attributes in Linux goes far beyond the familiar chmod, chown, and ls -l commands. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/linux-shell-commands-for-acl-and-ea) [![Transfer Learning with Transformer Neural Networks](https://blog.rheinwerk-computing.com/hs-fs/hubfs/Transfer%20Learning%20with%20Transformer%20Neural%20Networks.jpg?height=600&name=Transfer%20Learning%20with%20Transformer%20Neural%20Networks.jpg)](https://blog.rheinwerk-computing.com/transfer-learning-with-transformer-neural-networks) [Artificial Intelligence](https://blog.rheinwerk-computing.com/tag/artificial-intelligence) ## [Transfer Learning with Transformer Neural Networks](https://blog.rheinwerk-computing.com/transfer-learning-with-transformer-neural-networks) Transformer neural networks have revolutionized the field of natural language processing (NLP). ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/transfer-learning-with-transformer-neural-networks) [![How to Configure Ansible](https://blog.rheinwerk-computing.com/hs-fs/hubfs/How%20to%20Configure%20Ansible.jpg?height=600&name=How%20to%20Configure%20Ansible.jpg)](https://blog.rheinwerk-computing.com/how-to-configure-ansible) [DevOps](https://blog.rheinwerk-computing.com/tag/devops) ## [How to Configure Ansible](https://blog.rheinwerk-computing.com/how-to-configure-ansible) When working with Ansible, the default settings aren’t always the best fit for your environment—especially in a development or test setup. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/how-to-configure-ansible) - - [1](https://blog.rheinwerk-computing.com/page/1) - [...](https://blog.rheinwerk-computing.com/page/1) - [4](https://blog.rheinwerk-computing.com/page/4) - [5](https://blog.rheinwerk-computing.com/page/5) - [6](https://blog.rheinwerk-computing.com/page/6) - [7](https://blog.rheinwerk-computing.com/page/7) - [8](https://blog.rheinwerk-computing.com/page/8) - [...](https://blog.rheinwerk-computing.com/page/11) - [30](https://blog.rheinwerk-computing.com/page/30) - ### Blog Topics - [All Topics](https://blog.rheinwerk-computing.com) - [Programming Languages](https://blog.rheinwerk-computing.com/tag/programming-languages) - [How To](https://blog.rheinwerk-computing.com/tag/how-to) - [DevOps](https://blog.rheinwerk-computing.com/tag/devops) - [Featured](https://blog.rheinwerk-computing.com/tag/featured) - [JavaScript](https://blog.rheinwerk-computing.com/tag/javascript) - [Cybersecurity](https://blog.rheinwerk-computing.com/tag/cybersecurity) - [What Is?](https://blog.rheinwerk-computing.com/tag/what-is) - [Artificial Intelligence](https://blog.rheinwerk-computing.com/tag/artificial-intelligence) - [Web Development](https://blog.rheinwerk-computing.com/tag/web-development) - [Software Development](https://blog.rheinwerk-computing.com/tag/software-development) **Subscribe to our blog!**Get notified about future blog updates. - - - ### Most Popular Blog Posts 1. [What Is?](https://blog.rheinwerk-computing.com/tag/what-is) [What Is the Basic Structure of a Python Program?](https://blog.rheinwerk-computing.com/what-is-the-basic-structure-of-a-python-program) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) 2. [HTML & CSS](https://blog.rheinwerk-computing.com/tag/html-css) [Twelve-Factor App Principles for Developers](https://blog.rheinwerk-computing.com/twelve-factor-app-principles-for-developers) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) 3. [Java](https://blog.rheinwerk-computing.com/tag/java) [Elements of the Java Programming Language](https://blog.rheinwerk-computing.com/elements-of-the-java-programming-language) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) 4. [Cybersecurity](https://blog.rheinwerk-computing.com/tag/cybersecurity) [11 Linux Shell Commands for Hacking and Security](https://blog.rheinwerk-computing.com/11-linux-shell-commands-for-hacking-and-security) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) 5. [User Experience](https://blog.rheinwerk-computing.com/tag/user-experience) [How to "Do" UX Design: A Guide to the ISO 9241-210 Standard](https://blog.rheinwerk-computing.com/how-to-do-ux-design-a-guide-to-the-iso-9241-210-standard) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) **Subscribe to our blog!**Get notified about future blog updates. - - - ### The official Rheinwerk Computing Blog Rheinwerk Computing is an imprint of Rheinwerk Publishing and publishes resources that will help you accelerate your computing journey. The Rheinwerk Computing Blog is designed to provide helpful, actionable information on a variety of topics, including programming, administration, security, and analytics! ### Blog Topics - [All Topics](https://blog.rheinwerk-computing.com) - [Programming Languages](https://blog.rheinwerk-computing.com/tag/programming-languages) - [How To](https://blog.rheinwerk-computing.com/tag/how-to) - [DevOps](https://blog.rheinwerk-computing.com/tag/devops) - [Featured](https://blog.rheinwerk-computing.com/tag/featured) - [JavaScript](https://blog.rheinwerk-computing.com/tag/javascript) - [Cybersecurity](https://blog.rheinwerk-computing.com/tag/cybersecurity) - [What Is?](https://blog.rheinwerk-computing.com/tag/what-is) - [Artificial Intelligence](https://blog.rheinwerk-computing.com/tag/artificial-intelligence) - [Web Development](https://blog.rheinwerk-computing.com/tag/web-development) - [Software Development](https://blog.rheinwerk-computing.com/tag/software-development) ### Blog curated by [![Rheinwerk Computing Logo](https://blog.rheinwerk-computing.com/hubfs/computing_logo-header.svg)](https://www.sap-press.com/rheinwerk-computing/) [Visit Rheinwerk Computing Store](https://www.sap-press.com/rheinwerk-computing/) ### About - [Home](https://sap-press.com/) - [About Us](https://sap-press.com/the-publisher/) - [Contact](mailto:info@rheinwerk-publishing.com) - [Legal Notes](https://sap-press.com/legal-notes/) - [Privacy Policy](https://sap-press.com/privacy/) - [Terms of Use](https://sap-press.com/terms/) © 2026 Rheinwerk Publishing, Inc. | Change Privacy Options