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Calca iOS - Mathematical text editor for engineers

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21–30 of 39 posts

Re: Calca iOS - Mathematical text editor for engineers

#21
It would be really neat if you could tap a number and drag it left or or right to adjust it's value. Everything would recalculate and you could have a small dialog box out to the side to adjust the increment level of the 'drag adjustment'. An iPhone screen probably wouldn't have room for the dialog box so you could putting it in settings but for iPad it would fit just fine.

Re: Calca iOS - Mathematical text editor for engineers

#22

Is there anything like this for stats? I remember watching my then girlfriend in the throes of her thesis, having to tweak and re-run a Stata script again and again and again. Also, for seriously complicated work, maybe a desktop all in one touch screen could be useful, so long as it's oriented more horizontally than vertically.

R + RStudio + Knitr is pretty solid, but more than a bit clunky - write Markdown, intersperse R to your heart's content, and you can execute lines as you see fit.

I have very high hopes for an R + LightTable integration.

Re: Calca iOS - Mathematical text editor for engineers

#23

It would be really neat if you could tap a number and drag it left or or right to adjust it's value. Everything would recalculate and you could have a small dialog box out to the side to adjust the increment level of the 'drag adjustment'. An iPhone screen probably wouldn't have room for the dialog box so you could putting it in settings but for iPad it would fit just fine.

Agreed! I have this exact feature on the todo list. It just didn't make it for v1.

Re: Calca iOS - Mathematical text editor for engineers

#24
post #4

Looks like an interesting halfway house between a text editor and a full-blown CAS like Mathematica (since I have a license, that's what I use as a scratchpad for this kind of thing). It also seems to overlap with Soulver, which is my go-to calculator on iOS. Cleverly, Calca appears to go a bit further than even MMA by back-filling changed definitions, almost like functional reactive programming. This is neat and som…

I continue to be baffled as to why black-box modules like this aren't more used by programmers. Code is quick to write, but it obscures structure.

http://images-co-ec.native-instruments.com/php/file.php/user...

Re: Calca iOS - Mathematical text editor for engineers

#25
I certainly can't speak for others, but my typical use case is projected to be in meetings. Imagine sitting in a room with a bunch of engineers and managers, and someone says something worth checking the math on.

If you're not the lucky dude at the conference room's computer and just happens to have IPython Notebook/LightTable/Excel/`w/e`, then this will be handy. Be the guy who keeps up with the conversation and can check assumptions.

The fact it allows variable names with spaces is just the sweetest syntactic sugar.

It runs a smidge slow on the iPhone, but since that's the tool I have on hand, I'll gladly take a lightweight equation solver like this. (And if the slide-to-change numbers feature gets added, I'll happily buy it again. Twice.)

Re: Calca iOS - Mathematical text editor for engineers

#26
post #4

Looks like an interesting halfway house between a text editor and a full-blown CAS like Mathematica (since I have a license, that's what I use as a scratchpad for this kind of thing). It also seems to overlap with Soulver, which is my go-to calculator on iOS. Cleverly, Calca appears to go a bit further than even MMA by back-filling changed definitions, almost like functional reactive programming. This is neat and som…

Hi I'm the author. I took a lot of inspiration from Soulver. I basically wanted a smarter Soulver with more programming constructs and better treatment of undefined variables. Hope you like it and OS X version will be out in a couple weeks.

I do. I've had a chance to play with it on my iphone and I'm impressed: it does a lot more than I expected it to.

I'll definitely be buying your OSX version. Have you settled on a price yet?

Re: Calca iOS - Mathematical text editor for engineers

#27

I certainly can't speak for others, but my typical use case is projected to be in meetings. Imagine sitting in a room with a bunch of engineers and managers, and someone says something worth checking the math on. If you're not the lucky dude at the conference room's computer and just happens to have IPython Notebook/LightTable/Excel/`w/e`, then this will be handy. Be the guy who keeps up with the conversation and can…

Glad you like the spaces in names! It's not hard to implement without too much ambiguity. :) There are a few tricks I need to pull to make things like: `if x then y else z` be interpreted correctly.

Fun fact: The slowness is bottlenecked by how fast I can update the text editor - the calculations themselves usually only take 10% of the update time. It's a big area that can be improved.

Re: Calca iOS - Mathematical text editor for engineers

#28
I like it, going to have to start using this more and can't wait for the desktop app.

Just a heads up, when creating a new document in ios 7 beta 3 on the ipad there is a crash. Author, what is the best way to send you the crash log?

Just something to look into before ios7 releases.

Re: Calca iOS - Mathematical text editor for engineers

#29
post #22

Is there anything like this for stats? I remember watching my then girlfriend in the throes of her thesis, having to tweak and re-run a Stata script again and again and again. Also, for seriously complicated work, maybe a desktop all in one touch screen could be useful, so long as it's oriented more horizontally than vertically.

R + RStudio + Knitr is pretty solid, but more than a bit clunky - write Markdown, intersperse R to your heart's content, and you can execute lines as you see fit. I have very high hopes for an R + LightTable integration.

R + LightTable would be lovely. As almost everyone else, I use a gross combination of the R GUI (Mac), Emacs, and Sweave.

I am not a huge fan of markdown other than as a "with benefits" convention for text documents, but I see a fair amount of superiority over Sweave/LaTeX for short documents and literate programs.

I see that most people use embedded LaTeX for expressions in various markdown implementations. Is this canonical or is this the result of 'improved' implementations such as Pandoc, etc.?

Btw, OP, you got your $2.99 - royalty from me because I want yet another reason to tell people there is no reason for them to have their laptops open in meetings.

Re: Calca iOS - Mathematical text editor for engineers

#30
post #6

This looks interesting, but I can't see myself using it on an ipad or phone. This is something I'd want to use on a desktop, with a keyboard, while multitasking with other programs. Edit: I'll keep it in the back of my head, and I might try it later.

Hi I'm the author. Yep Mac is done and just being submitted for review. I just couldn't resist announcing the iOS version.

You should add an "email me when the Mac version is ready" signup form. Because I will forget about this if you don't remind me, but I'm willing to buy as long as the price isn't significantly higher.

If you want to manually email me when it's done my address is in on my profile page.

This looks really cool!

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