New Acron RPN Calculator for Android

[vanLudwig]

(07-04-2016 04:12 PM)Nigel (UK) Wrote:  I find that I am starting to miss the calculation history feature on other RPN machines

You've discovered my plot to take over the RPN market

(07-04-2016 04:12 PM)Nigel (UK) Wrote:  Suggestion: how about adding a LastX function? It could replace MC on the Stack menu.

Good idea. I wasn't aware of LastX prior to your post, but after doing some research, this looks like a valuable addition. The main reason I had a MC button was to make the button layout work, so I don't mind replacing it.

(07-04-2016 04:12 PM)Nigel (UK) Wrote:  One minor point: quite often, (integer)^(positive integer) gives an answer ending in a decimal point, e.g., "2^16=65536." Would it be possible to arrange that, where possible, these numbers are automatically integers?

It happens for exponents over 9. My "perfect" number engine computes exponents by repeated multiplication. For exponents over 9, it converts the "perfect" number to floating point and uses logarithms. I will modify this to check the inputs and look for oportunities to round the result back to a perfect number. Perfect numbers use 32 bit integers, so 10^10 already overflows, so this will only help for very small base values.