Microsoft has open sourced the code for its Windows Calculator app, inviting developers to help improve the tool's user experience while at the same time learning about and possibly adopting its ...

Google has rebuilt Chrome OS's built-in Calculator app, making it available for all devices, not just Chromebooks.

Imagine describing your app idea—whether it’s a simple calculator or a dynamic video player—and watching it come to life almost instantly.

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 Nause… ...