Spreadsheets are ideal for tracking finances, orders, inventory, and so much more. If you’re a Mac user, you can take advantage of the spreadsheet app that comes free with macOS. Here’s how to use ...

You know how when you’re working with numbers on paper, and you draw a line from the result of one equation to kind of “link” the result to the beginnings of another? Like maybe you’re planning a New ...

How hard can it be to write a simple four-function calculator program? After all, computers are good at math, and making a calculator isn’t exactly blazing a new trail, right? But [Chad Nauseam] will ...

New in iOS 17 are interactive widgets on the Home Screen — that is, widgets that can do things, not just passively show information — and a handy one is Calcullo. Calcullo is a $1.99 calculator widget ...