Tables, named ranges, line breaks, modern functions, and helper columns make Excel formulas easier to read, audit, and fix.

Messy Excel formulas are more than just an eyesore—they're harder to maintain. Every repeated cell reference and tangled ...

The open source community has created many open source Java projects, which range from charting software to game frameworks to word processors. In this post, I introduce an open source library project ...

[Ádám] participates in a competition called KöMaL. It’s a 9-times-a-month journal for junior high and high school students featuring math and physics problems. [Paul Erdős], one of the most published ...