Special Function Sets & HPs

[Ángel Martin]

(01-31-2016 08:26 PM)emece67 Wrote:  

(01-31-2016 08:29 AM)Paul Dale Wrote:  Seriously, does anyone actually use these? I have never required them for anything beyond minimal step challenges. Honestly, I'd prefer to include the Jacobi elliptic functions which are a superset of both hyperbolic and trigonometric functions (these didn't make the cut in the 34S).

[...]

Well, as you have asked... I suppose this (and all others) depend on the field each one uses to work. When studying EE I used hyperbolics in two situations (lossy transmission lines and bipolar differential amplifiers). And later, when at work, when dealing with exponential horns. But, instead, I've never seen (this does not mean that they do not exist) an engineering book that uses the Jacobi elliptic functions, but have seen many others using the Bessel ones (one of the things I have missed in my calculators).

Both the Jacobi Elliptic functions and the Bessel functions are available in the SandMath - on the 41, that is if you would find a mere 10-digit approach acceptable of course.

BTW another relatively common application of the bare-bones hyperbolic arises in transmission power lines, as the equation of the catenary involves the hyperbolic cosine..

PS. as far as random numbers, involving the time module makes it less pseudo and more like the real thing, does it not??