--- title: Learn Computing from the Experts | The Rheinwerk Computing Blog | Rheinwerk Computing (22) description: Rheinwerk Computing is an imprint of Rheinwerk Publishing and publishes books by leading experts in the fields of programming, administration, security, analytics, and more. (22) --- [![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) ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) **Rheinwerk Computing** Rheinwerk Computing is an imprint of Rheinwerk Publishing and publishes books by leading experts in the fields of programming, administration, security, analytics, and more. # Blogs by Rheinwerk Computing [![How to Search Files in a Git Repository](https://blog.rheinwerk-computing.com/hs-fs/hubfs/How%20to%20Search%20Files%20in%20a%20Git%20Repository.png?height=600&name=How%20to%20Search%20Files%20in%20a%20Git%20Repository.png)](https://blog.rheinwerk-computing.com/how-to-search-files-in-a-git-repository) [DevOps](https://blog.rheinwerk-computing.com/tag/devops) ## [How to Search Files in a Git Repository](https://blog.rheinwerk-computing.com/how-to-search-files-in-a-git-repository) If you have questions about searching Git repositories, such as what was the content of a particular file at an earlier time? What has changed since... ![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-search-files-in-a-git-repository) [![How to Pick Up Spring-Managed Beans through Classpath Scanning](https://blog.rheinwerk-computing.com/hs-fs/hubfs/How%20to%20Pick%20Up%20Spring-Managed%20Beans%20through%20Classpath%20Scanning.png?height=600&name=How%20to%20Pick%20Up%20Spring-Managed%20Beans%20through%20Classpath%20Scanning.png)](https://blog.rheinwerk-computing.com/how-to-pick-up-spring-managed-beans-through-classpath-scanning) [Java](https://blog.rheinwerk-computing.com/tag/java) ## [How to Pick Up Spring-Managed Beans through Classpath Scanning](https://blog.rheinwerk-computing.com/how-to-pick-up-spring-managed-beans-through-classpath-scanning) This blog post is about how you can add new beans to the container in Spring. ![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-pick-up-spring-managed-beans-through-classpath-scanning) [![CSS in JavaScript Using Emotion](https://blog.rheinwerk-computing.com/hs-fs/hubfs/CSS%20in%20JavaScript%20Using%20Emotion.png?height=600&name=CSS%20in%20JavaScript%20Using%20Emotion.png)](https://blog.rheinwerk-computing.com/css-in-javascript-using-emotion) [HTML & CSS](https://blog.rheinwerk-computing.com/tag/html-css) ## [CSS in JavaScript Using Emotion](https://blog.rheinwerk-computing.com/css-in-javascript-using-emotion) Emotion is a library for *CSS-in-JS*, an approach where you make style specifications in JavaScript code. ![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/css-in-javascript-using-emotion) [![What Is Generative AI?](https://blog.rheinwerk-computing.com/hs-fs/hubfs/What%20Is%20Generative%20AI.png?height=600&name=What%20Is%20Generative%20AI.png)](https://blog.rheinwerk-computing.com/what-is-generative-ai) [What Is?](https://blog.rheinwerk-computing.com/tag/what-is) ## [What Is Generative AI?](https://blog.rheinwerk-computing.com/what-is-generative-ai) In the realm of artificial intelligence, one of the most fascinating and rapidly evolving areas is generative AI. ![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/what-is-generative-ai) [![What Is the Newer Alternate Box Model of CSS?](https://blog.rheinwerk-computing.com/hs-fs/hubfs/What%20Is%20the%20Newer%20Alternate%20Box%20Model%20of%20CSS.png?height=600&name=What%20Is%20the%20Newer%20Alternate%20Box%20Model%20of%20CSS.png)](https://blog.rheinwerk-computing.com/what-is-the-newer-alternate-box-model-of-css) [What Is?](https://blog.rheinwerk-computing.com/tag/what-is) ## [What Is the Newer Alternate Box Model of CSS?](https://blog.rheinwerk-computing.com/what-is-the-newer-alternate-box-model-of-css) Not everyone will like the classic box model of CSS, where you specify width to determine the width of the content area and end up having to consider... ![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/what-is-the-newer-alternate-box-model-of-css) [![How to Install Bash](https://blog.rheinwerk-computing.com/hs-fs/hubfs/How%20to%20Install%20Bash.png?height=600&name=How%20to%20Install%20Bash.png)](https://blog.rheinwerk-computing.com/how-to-install-bash) [Programming Languages](https://blog.rheinwerk-computing.com/tag/programming-languages) ## [How to Install Bash](https://blog.rheinwerk-computing.com/how-to-install-bash) In this blog post, we’ll teach you have to install Bash on your 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/how-to-install-bash) [![How to Perform Matrix Multiplication with Python](https://blog.rheinwerk-computing.com/hs-fs/hubfs/How%20to%20Perform%20Matrix%20Multiplication%20with%20Python.png?height=600&name=How%20to%20Perform%20Matrix%20Multiplication%20with%20Python.png)](https://blog.rheinwerk-computing.com/how-to-perform-matrix-multiplication-with-python) [Python](https://blog.rheinwerk-computing.com/tag/python) ## [How to Perform Matrix Multiplication with Python](https://blog.rheinwerk-computing.com/how-to-perform-matrix-multiplication-with-python) *Matrix multiplication* is needed, for example, in the calculation of electrical networks. Python can perform these multiplications for you. ![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-perform-matrix-multiplication-with-python) [![A/B Testing in Design Projects](https://blog.rheinwerk-computing.com/hs-fs/hubfs/AB%20Testing%20in%20Design%20Projects.png?height=600&name=AB%20Testing%20in%20Design%20Projects.png)](https://blog.rheinwerk-computing.com/ab-testing-in-design-projects) [Web Development](https://blog.rheinwerk-computing.com/tag/web-development) ## [A/B Testing in Design Projects](https://blog.rheinwerk-computing.com/ab-testing-in-design-projects) A/B testing is a unique form of usability and UX testing in which at least two solution variants are compared. This testing can be conducted either... ![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/ab-testing-in-design-projects) [![What Is PostgreSQL?](https://blog.rheinwerk-computing.com/hs-fs/hubfs/What%20Is%20PostgreSQL.png?height=600&name=What%20Is%20PostgreSQL.png)](https://blog.rheinwerk-computing.com/what-is-postgresql) [What Is?](https://blog.rheinwerk-computing.com/tag/what-is) ## [What Is PostgreSQL?](https://blog.rheinwerk-computing.com/what-is-postgresql) PostgreSQL has been holding its own in the open-source database market for many years. With features that usually only very expensive *enterprise...* ![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/what-is-postgresql) [![Regression Analysis with Python](https://blog.rheinwerk-computing.com/hs-fs/hubfs/Regression%20Analysis%20with%20Python.png?height=600&name=Regression%20Analysis%20with%20Python.png)](https://blog.rheinwerk-computing.com/regression-analysis-with-python) [Python](https://blog.rheinwerk-computing.com/tag/python) ## [Regression Analysis with Python](https://blog.rheinwerk-computing.com/regression-analysis-with-python) A *regression analysis* is a statistical analysis method that examines the relationships between two variables. ![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/regression-analysis-with-python) - - [1](https://blog.rheinwerk-computing.com/author/rheinwerk-computing/page/1) - [...](https://blog.rheinwerk-computing.com/author/rheinwerk-computing/page/17) - [20](https://blog.rheinwerk-computing.com/author/rheinwerk-computing/page/20) - [21](https://blog.rheinwerk-computing.com/author/rheinwerk-computing/page/21) - [22](https://blog.rheinwerk-computing.com/author/rheinwerk-computing/page/22) - [23](https://blog.rheinwerk-computing.com/author/rheinwerk-computing/page/23) - [24](https://blog.rheinwerk-computing.com/author/rheinwerk-computing/page/24) - [...](https://blog.rheinwerk-computing.com/author/rheinwerk-computing/page/27) - [29](https://blog.rheinwerk-computing.com/author/rheinwerk-computing/page/29) - ### 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. 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