49G+ programming features



#4

Hello, sorry for my bad english...
I want buy 49G+, so I have some questions:
1. Is possible to create dialogs similar to TI-89 (strings, inputs and outputs in one dialog) ?
2. Can I create user-defined menu?
3. Functions, that are be able to return value directly, not only into variable (like ClassPad).
4. Possibility to store and recall variables from SD card by commands in programs.
5. Functions similar to TI: Try - EndTry and ClrErr.
Thank you for your answers :)
Standa(CZ)


#5

Hi, Standa;

I think I have answers to some questions of yours:

2. Can I create user-defined menu?
Yes. Features for custom menu allow you to associate a custom string to a key and allow different actions to each:
press a menu key directly
[left-shift] and
[right-shift] prior to press the key
3. Functions, that are be able to return value directly, not only into variable (like ClassPad).
All internal functions (O.S. defined, like LN, SIN, etc) that return values place them in the stack, i.e., they are not necessarily associated to variables. Some applications change or use values in variables that already exist, like TVM or CAS functions. If you mean custom-defined functions, it depends on the way you create/define them.
4. Possibility to store and recall variables from SD card by commands in programs.
Yes. Storing and recalling (and purging) variables in SD cards are merely a question of adding :3: (designator to port 3) as the first "character" of the variable's name. If you want to store an object (already in level 1) in an SD card with the name 'DATA1', you type in:
:3:DATA1 [STO]
This sequence can be part of a program as well.

Sorry, but I have no answer for the other ones.

Cheers.

Luiz (Brazil)

Edited: 7 June 2004, 11:59 p.m.

#6

I want buy 49G+, so I have some questions: 
1. Is possible to create dialogs similar to TI-89 (strings, inputs and outputs in one dialog) ?

VPN: INPUT and INFORM commands are quite close
VPN: download

2. Can I create user-defined menu?

{ COS { "CSC" << INV COS >> }
{ "Three" { Normal left.shift right.shift }}
MENU

3. Functions, that are be able to return value directly, not only into variable (like ClassPad).

VPN: That's the way they usually work
VPN: << -> y x << x LN y LN / EVAL >> >> 'yLOGX' STO

4. Possibility to store and recall variables from SD card by commands in programs.

:SD:"DOSDIR/SUBDIR/VAR" RCL or STO
:3: { DOSDIR SUBDIR VAR } RCL or STO

5. Functions similar to TI: Try - EndTry and ClrErr.

IFERR..THEN..END
IFERR..THEN..ELSE..END
also
# errnh DOERR
# errn.dec DOERR
# "User String" DOERR
and
in the HOME directory you can have STARTERR -a custom errorhandler.
BUT
*do not use it*
until you have mastered the programming
or you may end up in an endless error loop

# VPNh


#7

1. Is possible to create dialogs similar to TI-89 (strings, inputs and outputs in one dialog) ? 
VPN: INPUT and INFORM commands are quite close
VPN: download http://www.hpcalc.org/details.php?id=6036
#8

Thank you for your answers. I am decided to buy HP49G+ before TI-89 Titanium :)


Possibly Related Threads…
Thread Author Replies Views Last Post
  New features on HP39gII next coming OS Mic 0 929 10-29-2012, 02:10 AM
Last Post: Mic
  HP-15C User Mode Features Matt Agajanian 5 1,791 04-30-2012, 11:29 AM
Last Post: Matt Agajanian
  Interesting TI Nspire CAS CX programming features Namir 5 1,995 04-15-2012, 04:11 PM
Last Post: Namir
  Best documentation for different features? David Hayden 1 922 11-12-2011, 07:55 PM
Last Post: Allen
  wp34s - New features in the SVN repository - now released! Marcus von Cube, Germany 13 3,514 05-07-2011, 12:13 PM
Last Post: Jeff O.
  Office Max Catalog now features HP 50g Eddie W. Shore 0 765 03-23-2010, 10:09 PM
Last Post: Eddie W. Shore
  Removing Calculus features from HP-15C skroops 24 6,007 11-21-2008, 11:10 AM
Last Post: skroops
  HP35s Features, or not JayL (MD, USA) 4 1,436 08-17-2007, 10:54 PM
Last Post: Vincze
  Comparison of HP41C features to HP35s Abq Steve 12 3,343 08-05-2007, 01:03 PM
Last Post: Abq Steve
  Ideal RPN calculator features... DaveJ 41 9,022 05-12-2007, 04:52 PM
Last Post: Hugh Evans

Forum Jump: