General

Setting a Variable to be used across multiple files.
I love this app. It replaced the majority of the reasons why I have spreadsheets. I would love to see a way to set a value of a variable and make it global. Meaning I could use that value in a different file.
4 votes 
Inline graphs ala other notebooks (Python/Jupyter, Mathematica, etc.)
The graph panel / sidebar presentation is generally icky. The program itself is GREAT  the language is great, it's all great. Except for visualization.
1 vote 
Support inline tables
I find trying to put tabular data into a document in a way that makes sense quite difficult. Various markdown flavors support this.
1 vote 
3D Plot
Please do a 3D plotting function, for functions like z(x,y) = x^2 + y^2 etc. So you can see your function in 3D.
5 votes 
Normal and inverse normal probability
Approximation of F(z) from z
For a given z, to find F(z), the following Hastings routine#entrar el valor de z para el qye se desea encontrar Prob[x<=z]
z=1.88
Valor de z
k= if z < 0 then z else z
d1=0.0498673470
d2=0.0211410061
d3=0.0032776263
d4=0.0000380036
d5=0.0000488906
d6=0.0000053830F(z)=1−0.5*(1+d1*k+d2*k^2+d3*k^3+d4*k^4+d5*k^5+d6*k^6)^(16)
Prob= if z < 0 then 1F(z) else F(z)
Prob=> 0.0301Aproximation of z from F(z)
c0=2.515517
c1=0.802853
c2=0.010328
cd1=1.432788
cd2=0.189269
cd3=0.001308x=0.0301
#entrar el valor de P[x<=k] en H
H=0.95H1= if H<=0.5 then H else 1H
t=sqrt(ln(1/H1^2))
k=t(c0+c1*t+c2*t^2)/(1+cd1*t+cd2*t^2+cd3*t^3)
zinv= if H1<=0.5 then k else k
zinv => 1.6452
1 vote 
Make it work with Bear/ DayOne both support markdown
Calca concept is brilliant as was looking for something like that for long time. It would be super nice if i could easily export the notes from calca to Bear and / or Day One.
3 votes 
Derivating twice and plotting glitch
When trying to derivate like this:
f= x^3 + 4x^2  5x + 1
der(f(x),x)=h
der(der(f(x),x),x) = j
f => x^3 + 4 x^2  5 x + 1
h => 3 x^2 + 8 x  5
j => 6 x + 8
plot (f,j,h, 5..5)The h function won't plot.
Tried unnesting the derivations as well but it not help.
Please fix this.
Great program by the way!3 votes 
More reactive variables =>
Plot in the note
Plot MathJax in the note
Plot and calculation interacts with variables in a transparent non editable mode.
iOS : Interactions on variable don't work …
more réactives interactions possibilities with ForceTouch1 vote 
Fonction composition f°f
Fonction composition
f ° f (t) === f(f(t))1 vote 
Higher derivatives
Higher derivatives
der^2 (f (t) ) === der(der( f ) , t))1 vote 
Make Calca grammar explicit
Calca syntax grammar sugar
2 votes 
i liked your finance example, but if there could be a way to tag each item and get tag based summary it will be great
say
expense +=
bike repair(p1) = 1000
house(p0) = 100
car fixing(p1) = 9000
window(p0) = 200expense => ...
and p0 => should be sum of all p0
p1 => should be sum of all p11 vote 
i liked your finance example, but if there could be a way to tag each item and get tag based summary it will be great
say
expense +=
bike repair(p1) = 1000
house(p0) = 100
car fixing(p1) = 9000
window(p0) = 200expense => ...
and p0 => should be sum of all p0
p1 => should be sum of all p11 vote 
Support for TODAY Function
It would be nice to support the following examples (let's suppose Today's date is 10/30/2016
TODAY  3 DAYS => 10/27/2016
TODAY  1 MONTH => 09/27/20168 votes 
Create a video tutorial.
Having a video tutorial on the site would allow for users to quickly grasp the flow of the app. As I come from a CS background I am drawing similarities with Calca and typical programming and with the obvious differences between Calca and typical programming I am running into issues ramming heads with my 'common sense'
Thanks for listening
6 votes 
Render matrix calculation results
Whenever the result of a calculation is a matrix, show it in tabular view, not just as a vector of vectors — either inline, or in the plot view.
5 votes 
Let's thank the dev!
Good job with your app. Thanks for being awesome with your continued support and feedback.
3 votes 
Adding onto the value stored in variables
Having the ability to add to the value in a variable would be helpful. As I come from a CS background that was one of my first thoughts when picking up this app.
One of the first things I tried to use this app for was keeping scores for a project I was working on. I defined some 'variables' assigned a value, then tried to update the value using an incrementer. Since it didn't work I am suggesting that here.
EX.
ChangingVar = 0
ChangingVar +1 //or something to that effect
ChangingVar = 11 vote 
Create a plugin/module/extensibility/customization framework.
Because google's search engine is not the top of the line for scientific or technical or knowledgebased calculations. To that effect I would love if WolframAlpha's knowledge computation engine (URL = hhtp://www.wolframalpa.com) or MathWorld hosted on wolfram.com's servers (URL = http://mathworld.wolfram.com) couldbe included in calca's information lookup function. As well if the user has private wellstructured local databases an API could be provided to query said information.
5 votes 
Your app in the list
My name is Artem, founder of freeappsforme.com
We've reviewed your "Calca" app and put it in 20 Best Calculator apps for iPhone & Android:
http://freeappsforme.com/calculatorappsiphoneandroid/
If you have a "mentions" page somewhere  we will be pleased to get a link to this post.
Thanks
1 vote
 Don't see your idea?