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  1. Use solved variables in other equations

    y = 2z + 1
    z(3) => 1
    z(3) * 5 => 5*z(3) //This should be 5

    88 votes
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      planned  ·  3 comments  ·  Admin →
    • Support for (simple) date & time arithmetic

      I often find myself needing time calculation, such as the number of hours between midnight and 9:30am. Or the number of days between 25th October 2013 and 25th December 2013.

      125 votes
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        planned  ·  8 comments  ·  Admin →
      • add a filter function

        filter(x > 2, [0,1,4,5]) => [4,5]

        With filter, map, and reduce, you'd have the basics of functional programming.

        9 votes
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        • Add intellisense

          ctrl+space to try to auto complete variables/functions/etc (with optional dropdown).

          14 votes
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            planned  ·  3 comments  ·  Admin →
          • Add support for series and statistical functions

            Specifically, means and std dev’s? Pass a series in and then do average(series), std dev(series), etc.

            17 votes
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              planned  ·  1 comment  ·  Admin →
            • 18 votes
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              • Ability to generate random number

                Something like foo = rand(1:100) gives foo a random number between 1 and 100

                26 votes
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                  planned  ·  6 comments  ·  Admin →
                • Add some undo functionality for IOS

                  I cannot find any way to undo some editing in IOS.
                  If it is implemented please document it.
                  Otherwise I think that it would be essential to at least have a way to undo recent edits or to revert to a previous version of the file. I had a complex calculation that I managed to seriously corrupt on my iPhone, while trying to change the value of an input variable and I could not find any way to go back...

                  Thanks for the amazing job!

                  28 votes
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                  • Allow external references to functions and variables in other calca files

                    Should be able to define the equivalent to an #include operator referencing another calca file. Then it would be possible to reference the functions, and variables defined.

                    17 votes
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                      planned  ·  0 comments  ·  Admin →
                    • Add date variables

                      I was trying to set up a countdown calculation (days until x, unless y takes longer) but couldn't figure out how to grab today's date from Google, or how to input another date to compare it to. Not a vital feature, just a possible one.

                      30 votes
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                      • Compute in Calca like mathematica

                        its really anoying to type "=" and ">" everytime to compute a calculation.So i made a autohotkey script to make it work just like mathematica (Shift+Enter Style).
                        Here is my script.You press Shift+enter:
                        ------------Script Start
                        +Enter::
                        IfWinActive ahk_class WindowsForms10.Window.8.app.0.129c866
                        {
                        Send {=}
                        Send >
                        Send {Space}

                        }
                        Return
                        -----------Script End
                        This script will only work when Calca window is in focus.Eventually i would want this functuanality to be baked in Calca.I think its really convenient.

                        28 votes
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                          planned  ·  5 comments  ·  Admin →
                        • Add minimum, maximum, average, and sum functions for a list of variables/numbers (maybe standard deviation, etc also)

                          Be nice to find the max/min of a list/array of numbers or variables, such as x = Min (x1, x2, x3,…) etc.

                          33 votes
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                            planned  ·  0 comments  ·  Admin →
                          • Support binary shifts (<< and >>)

                            It would be helpful to me in using Calca as a scratchpad in programming and sysadmin work if I could use binary bit-shifts:

                            4 << 1 => 8
                            8 >> 1 => 4

                            I know this runs into problems with the sign bit (bug filed), but anything would be better than nothing.

                            33 votes
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                              planned  ·  0 comments  ·  Admin →
                            • Add some kind of import function

                              As in the ability to import/include another file..I am thinking simply by filename, and it would look in the relative path of that file. Perhaps this may be a little overboard for this kind of tool, but I was thinking in terms of having common sets of units / functions etc you may use across a set of files.

                              53 votes
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                                planned  ·  5 comments  ·  Admin →
                              • 11 votes
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                                  1 comment  ·  Admin →
                                • format equations with math symbols

                                  Beyond just Greek symbols, I'd love to see Calca produce built-up (or at least linear) equation formatting. (see http://www.unicode.org/notes/tn28/UTN28-PlainTextMath-v2.pdf)

                                  it'd be cool to consume that markup as input also. :)

                                  keep up the great work!

                                  35 votes
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                                  • Provide a Contributors library online

                                    Provide a repository where users can contribute and share their favorite functions to help quickly extend Calca's capabilities through reuse of proven solutions.

                                    12 votes
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                                      planned  ·  3 comments  ·  Admin →
                                    • Make it easy to use the result of the previous calculation

                                      Add an easy way (button/syntax) to copy the result of the previous calculation to the current cursor.

                                      31 votes
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                                        planned  ·  3 comments  ·  Admin →
                                      • Have awnsers in fractions

                                        Is that possible? If so, I would like to know how.
                                        If it isn't, Make that happen. Please.

                                        13 votes
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                                        • Add a keyboard shortcut for the => symbol

                                          Sure, it’s just one less character, but typing => all the time is inefficient, especially to type `=` which is at an awkward pinky location on the keyboard. The iOS app gets it right, with a `=>` shortcut button.

                                          34 votes
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                                            planned  ·  9 comments  ·  Admin →
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