I'm usually quite eager on using technology wherever sensibly applicable, however whenever I make some calculations I still end up using a pen and paper, by now resulting in an entire pile of sheets with 50% crossed out and obviously lacking any searchability. Every now and then I try to re-order this stuff by LaTeX-ing it, and sometimes I even try starting the calculations directly by typesetting it (and removing mistakes on the fly), but this seems pretty tedious.
So, I'm trying to come up with a question here that is not too subjective or broad, and it boils down on the question's title. But I'll try to elaborate a bit more:
- Where to get started using a computer/laptop/tablet/smartphone properly for back-of-the-envelope calculations? LaTeX? Mathematica/Maple?
- A keyboard may be a swift input method for text, but for formula I still consider my handwriting superior. That is however inversely proportional to its readability... So while there is a lot of handwriting-recognition software around, is there anything actually working well with formula? (Ideally capable of recognizing the most basic mistakes like sign errors, but I guess I'm wish-thinking there...)