WP-32S in 2016?
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01-08-2016, 09:09 PM
(This post was last modified: 01-08-2016 09:25 PM by Dieter.)
Post: #38
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RE: WP-32S in 2016?
(01-08-2016 06:27 AM)Paul Dale Wrote: Another question for the community is what extra functions would be desirable? Honestly, I don't want more functions but better ones. The current WP34s implementations of some functions (Gamma, Beta, some quantile functions) still have room for improvement – this has been discussed before, so the weak points should be known. Then some functions that are now placed in XROM deserve a speed-up. Think of the quantile functions that sometimes require 5...10 seconds. Compare this with the design goal of the world's very first scientific calculator, the HP35: it was supposed to return any result within a second. Finally, there are some not too sophisticated functions that can make the programmer's life much easier as they preserve accuracy that would be lost in a straightforward implementation. Think of a sqrt(1+x) – 1 or a general (1+x)^n – 1 function, especially for small x. Or y^x – 1, or 1 – cos x, or Lambert's W + 1. Or a sin(x*pi) function that returns exact results for integer fractions of Pi. Or... you get the idea. There is more than ln(1+x) and e^x–1. Addendum: I think the Boost math toolkit may provide some good insights regarding a useful math function set. Dieter |
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