I don’t come close to using all the features in Calca: functions, unit/currency conversion, matrix math, derivatives, and so on. Everything from “=>” to the end of the line is rewritten to become a read-only answer. The trick is that it looks for “=” and interprets these as definition statements and it looks for “=>”, and treats these lines as problems to solve. SpeedCrunch is available for all platforms, but like many Open Source programs, the operation and user interface is clunky.Ī few months back, I found Calca, “the text editor that loves math,” for Windows and Mac. There is an iOS port, but I can’t stand the data entry. It’s great on the Mac, but there are not Windows or Linux ports. I write code on Linux (work) and Mac (home), but my office Windows box ends up being my documentation reference, scratchpad, calculator, and everything else non-coding because I typically run my Linux IDE full-screen (bridged with Synergy, naturally). Ideally a Linux version would be available, too. It needs to minimally run on Windows and Mac.I don’t need or want Mathematica or Maxima. Or leave it running in the background without eating a ton of resources. This includes expressions ( 0x48+0x16) as well as base conversion ( 0xC3 as decimal or 0b110101 as decimal) and bitwise math ( 0xFC AND 0x7F). Be able to easily edit and copy previously-entered expressions.Be able to enter expressions similar to what I could do on a TI-85, back in the day, for example: 2^2+(2*10).I think I’ve finally found one worth mentioning. For years, I’ve been searching for a good free-form symbolic calculator program that works across multiple desktop operating systems.
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