![Hanselminutes - Fresh Talk and Tech for Developers show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/083/867/small/hanselminutes-fresh-talk-and-tech-for-developers.jpg)
Summary: Calca is a powerful symbolic calculator that gives you instant answers as you type. It was written by Frank Krueger (creator of iCircuit) using C# and Xamarin tools and is available today for iPhone, iPad, and Mac desktop - plus soon for Windows! How did Frank do it, and why?