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NFC/QR enabled scientific calculator

  [vote for,

Calculators are getting pretty advance these days.

But what would be nice, is if NFC tags are supported (For read and writing. And optionally a camera to read QR codes.

At the most basic, you can write the content of the calculator memory to the tag, or read it back.

Perhaps you can also write custom symbols for the memory content, e.g. constants

More advance application could be storing macros, or small programs. E.g. custom functions e.g. mmToKm(dist).

mofosyne, Apr 16 2015


       This could be implemented as an app on a tablet, which would have the advantage that the tablet is a general purpose device and could also run compiers for FORTRAN and C, as well as a BASIC interpreter.   

       However, there is something to be said in favour of a device with phyisical keys as a user imterface.
8th of 7, Apr 16 2015

       Good point, but I would hope that the format is standardized enough to be used interchangeably between "physical keys calculators" and "tablet apps".   

       And that means having a programming language that is as close to "calculator notation" as possible. E.g. "10^3" instead of "pow(10)". Also must have complex number support "23+2i" or "53/_32". And finally, it needs to allow for compact source code, with a lightweight interpreter fit for a micro controller.   


       Here is some brainstorming of a compact code, that would hopefully be minimal characters but still be useful.:   

       someFunc( A=1 :? acceleration of object, M=4 :? mass of object ){ if(M==0){ 0; !! } if(M==INF){ !err:"unbounded"! } ; M*A } :? "This calculates force"   

       If you ask help for someFunc, it says in calculator screen   

       "someFunc:: A: acceleration of object, M: mass of object, (Default: A=1 M=4) :- This calculates force"   

       This would show the default values for A and M, and a short description of it. Also to do assign value, you type "varName=value".   

       Much like ruby, unless a return value is specified (e.g. !ANS!) , the return value is automatically the last answer held in ANS register (Triggered at end of function, or if "!!" is said).
mofosyne, Apr 16 2015

       As for tablets, while the technology to make "glass keyboards" has been around for some years, users still seem to favour the electromechanical versions.   

       Given the inherent ability of a touchscreen keyboard to be dynamically reconfigured, the conclusion must be that they lack the tactile feedback that users want.
8th of 7, Apr 17 2015


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