It may be a surprise to learn that you can define names of cells in Microsoft Excel instead of using the letter and number combinations. This makes it friendlier to read and understand. For example, ...

Array constants in Microsoft Excel are powerful tools for performing multiple calculations with a single formula. Using array constants in your Excel worksheets avoids the need for lengthy or repeated ...

Dr. JeFreda R. Brown is a financial consultant, Certified Financial Education Instructor, and researcher who has assisted thousands of clients over a more than two-decade career. She is the CEO of ...

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

Have you ever found yourself wrestling with Excel formulas, trying to calculate moving averages or rolling totals, only to end up frustrated by the constant need for manual adjustments? You’re not ...

You often have to make quick judgments about the number of objects you encounter in the world. You might see a group of people walking toward you. It is useful to know whether there are roughly five, ...