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newRPL: [UPDATED April 27-2017] Firmware for testing available for download
10-03-2015, 01:22 PM
Post: #42
RE: newRPL: [UPDATED Oct-01-2015] Firmware for testing available for download
Unfortunately, I haven't found any time to test newRPL so far, but I'm following the discussions for quite some while with interest and are delighted to find several of the remaining limitations of RPL already addressed in newRPL. Four comments regarding how to possibly further improve the units implementation:

- For regression and stress testing against the HP 48 or HP 50 implementation or to allow deliberately working with a particular CODATA set - f.e. (in the long run) in contractual engineering work, in exams, or when working with old or future literature, it might be useful to have the option to switch the CODATA definitions. While for developers this could be a compile-time option, a special newRPL specific command to flip the complete set of definitions at runtime might be a better solution for users. Something like 2014 CODATA Enter, 1998 CODATA Enter, perhaps?

- The 50g and Prime do not define the same set of predefined units. Wouldn't it be useful to add the units defined by the Prime to newRPL as well to make switching between different calculators and implementations easier and to improve the level of "future" compatibility somewhat?

- AFAIK newRPL already supports SI decimal prefixes, doesn't it? What about IEC binary prefixes, which are becoming more and more important?

Ki: 2^10 or 1024^1
Mi: 2^20 or 1024^2
Gi: 2^30 or 1024^3
Ti: 2^40 or 1024^4
Pi: 2^50 or 1024^5
Ei: 2^60 or 1024^6
Zi: 2^70 or 1024^7
Yi: 2^80 or 1024^8

- According to the newRPL status list, switching between DEG, RAD and GRAD angular modes isn't implemented yet (BTW perhaps adding a TURN mode as well to the ToDo list?), so the use for the following is still limited at present: But since this thread is about units, what about automatically appending the angular unit of the currently selected angular mode so that 1 ASIN Enter would result in 90_° in DEG mode, 100_gon in GRAD mode, or 1.570..._rad in RAD mode (and 0.25_tr in TURN mode) etc. This way, angular values on the stack or in variables would remain usable beyond global angular mode switches without a need for conversion.

Keep up the great work!

Greetings,

Matthias


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RE: newRPL: [UPDATED Oct-01-2015] Firmware for testing available for download - matthiaspaul - 10-03-2015 01:22 PM



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