"J-Splines" curve fitting
Needed to find a function to fit a set of given points. Didn't found an easy formula so I came up with something universal and gave it the name "J-Splines".
Tone Generator
I was looking for a simple and ad-free app to generate and mix a number of tones. It was even faster to just ask AI to create an app than searching for an existing app that fit my needs.