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  1. Fix currency units in standard library functions

    Normal units work with library functions; this works:

    floor(5.46 m) => 5 m

    But, this does not:

    floor($5.46) => floor($5.46)

    I can workaround, by doing something like:

    add$(x) = $*x
    rem$(x) = x/$

    floor$(x) = add$(floor(rem$(x)))

    Can it be fixed?

    3 votes
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    • [bug] keyboard partially visible on iPad 9.7 portrait split screen mode

      iOS 11: If screen is splitted with another App together with Calca, when trying to input text on Calca screen, the top-part of the added–Calca–keyboard (with symbols, numbers and so on) is only partially visible on Calca’s side of the screen. The other part stays hidden by the other app which shares the screen with Calca. This makes the added part of keyboard unusable occupying precious screen space.

      1 vote
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      • Add interpolation functions

        I think it would be very nice to have the ability to get, at least, linear interpolation.

        1 vote
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        • Keyboard doesn't fit in portrait mode on 10.5 inch iPad Pro

          Hi, the extra keyboard row doesn't display properly when in portrait orientation, it gets both sides chopped off.

          -Mike

          2 votes
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          • bug in de-CH language.

            hi guys
            the decimal character for de-CH is wrong. In Switzerland we write 1'000.99
            The decimal delimiter is a . and not a , as it is actually done in calca. can you please correct this bug?

            thank you and best regards
            petrr

            1 vote
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            • Give Calca some more multilingual support

              If Calca presents math into something more tangible, into words that are easier to understand, Calca should support multiple languages outside of English. Maybe Chinese support for instance.

              1 vote
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              • Add integrals

                Be able to use integrals.

                4 votes
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                • 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.

                  4 votes
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                  • 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
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                      1 comment  ·  Admin →
                    • 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
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                      • 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
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                        • 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.

                          6 votes
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                          • 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=0.0000053830

                            F(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 1-F(z) else F(z)
                            Prob=> 0.0301

                            Aproximation of z from F(z)

                            c0=2.515517
                            c1=0.802853
                            c2=0.010328
                            cd1=1.432788
                            cd2=0.189269
                            cd3=0.001308

                            x=0.0301

                            #entrar el valor de P[x<=k] en H
                            H=0.95

                            H1= if H<=0.5 then H else 1-H

                            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
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                            • 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
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                                1 comment  ·  Admin →
                              • 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 ForceTouch

                                1 vote
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                                • Fonction composition f°f

                                  Fonction composition
                                  f ° f (t) === f(f(t))

                                  1 vote
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                                  • Higher derivatives

                                    Higher derivatives
                                    der^2 (f (t) ) === der(der( f ) , t))

                                    1 vote
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                                    • Make Calca grammar explicit

                                      Calca syntax grammar sugar

                                      2 votes
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                                      • 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 => 09/27/2016

                                        9 votes
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                                        • 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) = 200

                                          expense => ...

                                          and p0 => should be sum of all p0
                                          p1 => should be sum of all p1

                                          1 vote
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