There's a lot of calculator apps out there, but I'm looking for something that
- works offline
- is ad-free
- supports bracketing (i.e.
- has the usual functionality like exponation
- has a few constants, mainly π and e
- has at least one logarithm
- nice to have:
- complex analysis
- is free
I'm about to extract the firmware of my TI-89+ and use that in graph 89, which is free as in beer and freedom, but emulating a "buttoned" calculator seems like a mediocre solution.