Fun article in the Communications of the ACM...

[KF6GPE]

Here's a fun piece I just stumbled across digging through the magazines on my coffee table about the enhancements made to the Android Open Source calculator shipping in Android Marshmallow and above that may interest some of you:
Small-Data Computing: Correct Calculator Arithmetic

Obligatory disclaimer: I work at Google, but have no connection to this work, and in fact prefer Free42 on my Android phone, and have recently started playing with Droid48.