The three most common open source technologies for writing data science programs are Python, SciLab, and R. Here's how to write program-defined functions in R. There's no clear definition of the term ...

Excel has over 475 formulas in its Functions Library, from simple mathematics to very complex statistical, logical, and engineering tasks such as IF statements (one of our perennial favorite stories); ...

Community driven content discussing all aspects of software development from DevOps to design patterns. Quite often a Java Stream or other component needs an object passed to it in order to perform ...

How to use curses to draw to the terminal screen. While graphical user interfaces are very cool, not every program needs to run with a point-and-click interface. For example, the venerable vi editor ...