4 ms·

Calca - Humane Symbolic Calculator for OS X and iOS

fortepianissimo 13y ago
I would love to have this with Python syntax (possibly with support of numpy and scipy).
- samwillis 13y ago
  Have you seen the IPython Notebook? http://ipython.org/notebook.html http://ipython.org/notebook.html I think it does what you want
- deleted 13y ago
  [deleted]
avolcano 13y ago
Would really like to see a comparison between this and Soulver (http://www.acqualia.com/soulver/ http://www.acqualia.com/soulver/). Most obvious differences are the lack of a two-column view and support for Markdown, as well as support for function definitions, which I'm pretty sure Soulver lacks.
- praeclarum 13y ago
  Calca takes ideas from Soulver and super sizes them: * Soulver allows free text editing within a line of computation; Calca allows free editing in the entire file * Both update as you type * Soulver understands arithmetic; Calca knows algebra, calculus, and algorithms * Soulver requires that all variables be defined; Calca does not * Soulver does not support user defined functions; to Calca, everything is a function * Soulver has no programming constructs; Calca is one step away from being a general purpose programming language. * Soulver does not support matrices; Calca does
- crux 13y ago
  One feature that Soulver has that I would love to see in Calca is combinatorics - you can do x choose y in Soulver.
  - praeclarum 13y ago
    Developer here, yep that was a bad omission. The worst part is I do that kind of math all the time! You can count on it showing up in updates either as a function or as syntax.
shawnz 13y ago
Wow! This seems amazingly complete for an iOS/OS X-only app that I've never heard of before today. Is it based on some preexisting algebra system, or totally from scratch? Regardless, it's very impressive.
- praeclarum 13y ago
  It's from scratch C# code using Xamarin to build the UI layers for iOS/OS X. Well, I also use a parser generator jayc which is based on jay which is a yacc cc. Everything else is mine. It's a pretty standard Expression tree implementation with a symbolic interpreter.
  - MoosePirate 13y ago
    Awesome product, I just bought it for my iPhone. Given that it's C# already, any plans for a windows version? I often do these types of calculations in excel at work, but this would be so handy.
progre 13y ago
Maybe someone reading this would be interested in my own calculator? Not as fancy as Calca for sure, by it can do functions... https://github.com/prog-re/klak https://github.com/prog-re/klak
japaget 13y ago
See previous discussion at: https://news.ycombinator.com/item?id=6015148 https://news.ycombinator.com/item?id=6015148
swah 13y ago
And yet no Soulver for Windows... wink

I would love to have this with Python syntax (possibly with support of numpy and scipy).

samwillis 13y ago
Have you seen the IPython Notebook? http://ipython.org/notebook.html http://ipython.org/notebook.html I think it does what you want
deleted 13y ago
[deleted]

Would really like to see a comparison between this and Soulver (http://www.acqualia.com/soulver/ http://www.acqualia.com/soulver/). Most obvious differences are the lack of a two-column view and support for Markdown, as well as support for function definitions, which I'm pretty sure Soulver lacks.

praeclarum 13y ago
Calca takes ideas from Soulver and super sizes them: * Soulver allows free text editing within a line of computation; Calca allows free editing in the entire file * Both update as you type * Soulver understands arithmetic; Calca knows algebra, calculus, and algorithms * Soulver requires that all variables be defined; Calca does not * Soulver does not support user defined functions; to Calca, everything is a function * Soulver has no programming constructs; Calca is one step away from being a general purpose programming language. * Soulver does not support matrices; Calca does
crux 13y ago
One feature that Soulver has that I would love to see in Calca is combinatorics - you can do x choose y in Soulver.
- praeclarum 13y ago
  Developer here, yep that was a bad omission. The worst part is I do that kind of math all the time! You can count on it showing up in updates either as a function or as syntax.

shawnz 13y ago

Wow! This seems amazingly complete for an iOS/OS X-only app that I've never heard of before today. Is it based on some preexisting algebra system, or totally from scratch? Regardless, it's very impressive.

praeclarum 13y ago
It's from scratch C# code using Xamarin to build the UI layers for iOS/OS X. Well, I also use a parser generator jayc which is based on jay which is a yacc cc. Everything else is mine. It's a pretty standard Expression tree implementation with a symbolic interpreter.
- MoosePirate 13y ago
  Awesome product, I just bought it for my iPhone. Given that it's C# already, any plans for a windows version? I often do these types of calculations in excel at work, but this would be so handy.

progre 13y ago

Maybe someone reading this would be interested in my own calculator? Not as fancy as Calca for sure, by it can do functions... https://github.com/prog-re/klak https://github.com/prog-re/klak

japaget 13y ago

See previous discussion at: https://news.ycombinator.com/item?id=6015148 https://news.ycombinator.com/item?id=6015148

swah 13y ago

And yet no Soulver for Windows... wink