And the clouds parted, and the angels sang... Oh my God, where has this program been my entire life? I've been hackily using a Python interpreter to do back of

And the clouds parted, and the angels sang... Oh my God, where has this program been my entire life? I've been hackily using a Python interpreter to do back of napkin math and trying to keep track of units etc in my head (and making frequent use of the up arrow key when I need to save a result from a previous equation). This program would have been a game changer if I'd discovered it a few months earlier before I finished my university physics course. It probably still will be next semester. I'm sincerely blown away by the automatic unit conversion. Each variable has a unit, and when I divide joules by meters I get newtons. This is fantastic and I cannot believe it is free, much less open source! Do you have a donation link?