HP Forum Archive 21

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Missing functions on the HP Prime!!!??? :-( Message #1 Posted by Namir on 21 Aug 2013, 5:05 p.m. After exploring the wealth of math functions and polynomials on the HP Prime emulator, I noticed that the following functions were missing: 1) Bessel functions 2) Bernoulli numbers 3) Bernoulli polynomials The history of HP calculator has supported calculating some of the Bessel functions, of integer orders, in the Math Pacs of various vintage calculators (in fact I was playing with the HP-67 Math Pac today and calculating Bessel function values). The Bernoulli numbers and polynomials have never been implemented in any HP calculator math pac. I am asking about these functions since the Prime now supports, for the first time, various orthogonal polynomials (Laguerre, Legendre, Hermite, and Chebyshev). So why not add Bessel and Bernoulli functions as new functions??? Namir Edited: 22 Aug 2013, 4:56 a.m. after one or more responses were posted

Re: Missing functions on the HP Prime!!!??? :-( Message #2 Posted by Tim Wessman on 21 Aug 2013, 5:17 p.m., in response to message #1 by Namir More important to get things right, with a smaller subset of functions that are fully tested and well documented, before starting the "lets lump in everyone's favorite function" game... IMHO TW

Re: Missing functions on the HP Prime!!!??? :-( Message #3 Posted by Gerson W. Barbosa on 21 Aug 2013, 5:43 p.m., in response to message #1 by Namir Zeta for complex arguments is one of them. Gerson.

Re: Missing functions on the HP Prime!!!??? :-( Message #4 Posted by Eddie W. Shore on 21 Aug 2013, 9:36 p.m., in response to message #1 by Namir That is the awesome part of calcualtors being programmable; it can be used to fill any missing holes and customize the calcualtor.

Re: Missing functions on the HP Prime!!!??? :-( Message #5 Posted by Mic on 22 Aug 2013, 2:31 a.m., in response to message #4 by Eddie W. Shore exactly, just program it ! But it will be good if the INPUT( command could accept CAS variable. Edited: 22 Aug 2013, 2:32 a.m.

Re: Missing functions on the HP Prime!!!??? :-( Message #6 Posted by Eddie W. Shore on 22 Aug 2013, 8:17 a.m., in response to message #5 by Mic I agree, the INPUT command is very limited. I usually use pass-through arguments, (myfunc(a,b,c)) instead of INPUT. At least pass-through arguments allow various types of input.

Re: Missing functions on the HP Prime!!!??? :-( Message #7 Posted by Gilles Carpentier on 22 Aug 2013, 8:40 a.m., in response to message #6 by Eddie W. Shore INPUT allows not only numbers but also also strings (between ""), matrices ( [[]]) , vectors, list etc ...

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