Formulas are powerful tools for performing calculations and analyzing data in Excel. In this beginner’s guide, you’ll learn how to use formulas and explore some popular built-in functions.

Learn how to use the powerful Excel TREND and FORECAST functions in your spreadsheets for more insight and analyze data more effectively ...

Ever wonder what sorts of errors freshman math students make? There are a couple of pretty basic ones.

Christophe P. Basso has written a new book: Linear Circuit Transfer Functions—An Introduction to Fast Analytical Techniques.