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HP Prime
09-06-2014, 03:01 AM
Post: #33
RE: HP Prime
I, who started this thread, have found the HP Prime manual somewhat better than I first thought.
And, the built-in help files are often useful. But, some basic things that could have been explained in the manual in a page or two are not mentioned. Just a few examples, of perhaps 20 or so that I've encountered so far:

(1) What does putting a variable in single quotes (e.g., 'X') mean, and why?

(2) == AND = are supposedly different, but = seems to work where == ostensibly would be required; e.g., (n=2) returns 1. Are = and == equivalent in some contexts and not others?

(3) Are := and the little right-pointing arrow (Store) always equivalent, or just sometimes?

(4) How to declare "locally global" variables and functions---those to be shared by all the subroutines of a program (without passing arguments in parentheses). Evidently such variables and functions are declared before the first Export Func() statement. I had to figure this out from examples on the internet, and I'm not sure I really understand it. A few sentences in the manual would clarify the procedure.

(5A) Most important of all, how is the lowest variable in the RPN stack (x, #1) accessed by or imported into a PPL program? The manual is strangely silent on such topics.

(5B) The manual says that Ans returns the last answer, but in fact it returns the last two operands, as a list. Why?

A useful supplement to the manual would be a long, complex program example, illustrating as many techniques and function as possible, with these features explicitly labeled by comments. The dice-rolling programs in the manual are a good start, but don't go far enough.

Earlier responses in this thread made me realize that the HP Prime is a "work in progress", not a finished product. So, I guess we're all doing HP's product testing for them. That's okay with me, as in the meantime the Prime is already a very cool and useful product (and an amazing assemblage of hardware and software for ca. $100). I just hope the next major task of the "work in progress" is to fix the interface between RPN and the rest of the system.
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Messages In This Thread
HP Prime - gbh - 08-30-2014, 02:44 AM
RE: HP Prime - Joe Horn - 08-30-2014, 04:20 AM
RE: HP Prime - gbh - 08-30-2014, 04:51 PM
RE: HP Prime - Tim Wessman - 08-31-2014, 02:33 PM
RE: HP Prime - lschroeder1947 - 08-31-2017, 09:59 AM
RE: HP Prime - DrD - 08-31-2017, 12:22 PM
RE: HP Prime - Hans S. - 08-31-2017, 08:49 PM
RE: HP Prime - lschroeder1947 - 09-01-2017, 10:26 AM
RE: HP Prime - sol740 - 08-30-2014, 08:32 PM
RE: HP Prime - eried - 08-30-2014, 09:32 PM
RE: HP Prime - Joe Horn - 08-30-2014, 10:04 PM
RE: HP Prime - walter b - 08-30-2014, 10:12 PM
RE: HP Prime - Joe Horn - 08-30-2014, 10:13 PM
RE: HP Prime - sol740 - 08-31-2014, 09:58 AM
RE: HP Prime - Michael de Estrada - 08-30-2014, 11:26 PM
RE: HP Prime - Mark Hardman - 08-31-2014, 12:40 AM
RE: HP Prime - toml_12953 - 09-10-2014, 03:10 PM
RE: HP Prime - gbh - 08-31-2014, 12:02 AM
RE: HP Prime - Michael de Estrada - 08-31-2014, 12:26 AM
RE: HP Prime - Mark Hardman - 08-31-2014, 12:33 AM
RE: HP Prime - gbh - 09-01-2014, 02:28 AM
RE: HP Prime - oldhpfan - 09-01-2014, 06:14 AM
RE: HP Prime - Tim Wessman - 09-01-2014, 03:42 PM
RE: HP Prime - cutterjohn - 09-05-2014, 08:48 PM
RE: HP Prime - Joe Horn - 09-05-2014, 11:44 PM
RE: HP Prime - cutterjohn - 09-14-2014, 02:40 PM
RE: HP Prime - parisse - 09-06-2014, 06:47 AM
RE: HP Prime - gbh - 09-01-2014, 05:50 PM
RE: HP Prime - walter b - 09-01-2014, 06:42 PM
RE: HP Prime - oldhpfan - 09-02-2014, 08:22 AM
RE: HP Prime - Joe Horn - 09-02-2014, 04:26 PM
RE: HP Prime - oldhpfan - 09-02-2014, 07:37 PM
RE: HP Prime - Joe Horn - 09-02-2014, 09:28 PM
RE: HP Prime - oldhpfan - 09-03-2014, 12:26 AM
RE: HP Prime - gbh - 09-01-2014, 07:35 PM
RE: HP Prime - walter b - 09-02-2014, 09:56 PM
RE: HP Prime - gbh - 09-02-2014, 03:50 PM
RE: HP Prime - oldhpfan - 09-02-2014, 07:55 PM
RE: HP Prime - oldhpfan - 09-06-2014, 02:31 AM
RE: HP Prime - gbh - 09-06-2014 03:01 AM
RE: HP Prime - Han - 09-06-2014, 03:49 AM
RE: HP Prime - gbh - 09-06-2014, 06:07 PM
RE: HP Prime - oldhpfan - 09-06-2014, 03:27 AM
RE: HP Prime - Eddie W. Shore - 09-14-2014, 03:03 PM
RE: HP Prime - dbbotkin - 09-22-2014, 05:55 PM
RE: HP Prime - StephenG1CMZ - 05-24-2015, 07:07 PM
RE: HP Prime - toml_12953 - 08-31-2017, 07:50 AM
RE: HP Prime - EladLending - 08-30-2017, 05:00 PM
RE: HP Prime - DrD - 09-01-2017, 11:55 AM
RE: HP Prime - Hans S. - 09-01-2017, 07:18 PM
RE: HP Prime - lschroeder1947 - 09-02-2017, 10:00 AM
RE: HP Prime - DrD - 09-02-2017, 11:21 AM



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