No! Hold the + and the - keys and press reset using a pin (you do not need to
hold reset), count out 3 sec (1001,1002,1003), let go of the + and - keys. The
desired menu should show up.

BTW, you can also upgrade using a FAT formatted SD card:

http://www.educalc.net/284489.page

--- In 50g@yahoogroups.com, "lfnorrisjr" <lfnorrisjr@...> wrote:
>
> I have the 2.15 ROM update in the Connex4 directory and the computer talking
to the HP50G in xmodem USB calculator mode, But when I try to update ROM form
the Connex menu it says to press "ON and + - keys for 3 secods together while
pressing reset then release reset " to get an upload menu but I have tried this
at least 6 times and no menu appears on the calculator. What gives?
>
> Lannie Norris
>
>
> --- In 50g@yahoogroups.com, "jimbostrudel" <freecycle@> wrote:
> >
> > I didn't see any mention of this yet (though my email's acting up today so
searching was a bit of a pain).
> >
> > From
http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en\
&cc=us&prodTypeId=215348&prodSeriesId=3235173&swItem=ca-74746-1&prodNameId=32351\
74&swEnvOID=228&swLang=8&taskId=135&mode=4&idx=0
> >
> > Version: 2.15 (14 Sep 2009) <-- not 2006!
> >
> > I just updated to it and it seems to have been successful.  This was linked
to from their main driver and software listing for the calculator (ie, not
through 40 layers of caution this is a beta don't use this or you may die of
seemingly unrelated causes because we didn't test the killowner function
thoroughly yet).
> >
>

I have the 2.15 ROM update in the Connex4 directory and the computer talking to
the HP50G in xmodem USB calculator mode, But when I try to update ROM form the
Connex menu it says to press "ON and + - keys for 3 secods together while
pressing reset then release reset " to get an upload menu but I have tried this
at least 6 times and no menu appears on the calculator. What gives?

Lannie Norris


--- In 50g@yahoogroups.com, "jimbostrudel" <freecycle@...> wrote:
>
> I didn't see any mention of this yet (though my email's acting up today so
searching was a bit of a pain).
>
> From
http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en\
&cc=us&prodTypeId=215348&prodSeriesId=3235173&swItem=ca-74746-1&prodNameId=32351\
74&swEnvOID=228&swLang=8&taskId=135&mode=4&idx=0
>
> Version: 2.15 (14 Sep 2009) <-- not 2006!
>
> I just updated to it and it seems to have been successful.  This was linked to
from their main driver and software listing for the calculator (ie, not through
40 layers of caution this is a beta don't use this or you may die of seemingly
unrelated causes because we didn't test the killowner function thoroughly yet).
>

I didn't see any mention of this yet (though my email's acting up today so
searching was a bit of a pain).

From
http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en\
&cc=us&prodTypeId=215348&prodSeriesId=3235173&swItem=ca-74746-1&prodNameId=32351\
74&swEnvOID=228&swLang=8&taskId=135&mode=4&idx=0

Version: 2.15 (14 Sep 2009) <-- not 2006!

I just updated to it and it seems to have been successful.  This was linked to
from their main driver and software listing for the calculator (ie, not through
40 layers of caution this is a beta don't use this or you may die of seemingly
unrelated causes because we didn't test the killowner function thoroughly yet).

I solved the problem by moving SIMP after NEXT :-) :

\<< \-> F V N
   \<< F XQ 1 N
     FOR K V DERIV
     NEXT
   \>> SIMPLIFY
\>> 'STO' DERVN

'F(X,Y)=X*Y/(X^2+Y^2)' 'Y' 2 --> 'd2d2F(X,Y)=-((6*Y*X^3-2*Y^3*X)/
(X^6+3*Y^2*X^4+3*Y^4*X^2+Y^6))'

I wrote a simple program for calculating the nth derivative:

\<< \-> F V N
   \<< F XQ 1 N
     FOR K V DERIV SIMPLIFY
     NEXT
   \>>
\>> 'DERVN' STO

'Function' 'Variable' 'N'  --> nth derivative

Examples of use of DERVN program:

'1/\v/X' 'X' 3 --> '-(15*\v/X/(8*X^4))'
'\.S(-\oo,1/X,EXP(-Y^2),Y)' 'X' 2 --> '(2*X^2-2)/(X^5*EXP(1/X^2))'
'F(X,Y,Z)' 'Z' 2 --> 'd3d3F(X,Y,Z)'

If I apply my DERVN program this function:

'F(X,Y)=X*Y/(X^2+Y^2)' 'Y' 2 --> "Error: Invalid User Function"

Why am I getting that message?

If I delete 'SIMPLIFY' then get the correct result, obviously not
simplified:

\<< \-> F V N
   \<< F XQ 1 N
     FOR K V DERIV
     NEXT
   \>>
\>> 'DERVN' STO

'F(X,Y)=X*Y/(X^2+Y^2)' 'Y' 2 --> 'd2d2F(X,Y)=(SQ(X^2+Y^2)*(X*(2*Y)-(X*
(2*Y)+2*(X*Y)))-(X*(X^2+Y^2)-X*Y*(2*Y))*(2*((X^2+Y^2)*(2*Y))))/SQ(SQ
(X^2+Y^2))'

then SIMPLIFY: 'd2d2F(X,Y)=-((6*Y*X^3-2*Y^3*X)/
(X^6+3*Y^2*X^4+3*Y^4*X^2+Y^6))'

Cheers,
Simone.

Gary

Other considerations would be the O/S of your system and the actual zip utility
used to install the update, personally after searching the net for one year to
find a really great and reliability zip utility I found PKZip.com.

Just as a precaustion I would use a trial of PK zip and then attempt the
upgrade. Usually PKzip will allow a trial of their zip utility for 30 days.

--- In 50g@yahoogroups.com, "Gary" <garyfiber@...> wrote:
>
> --- In 50g@yahoogroups.com, "Tim" <timwessman@> wrote:
> >
> > > The original instructions were from the actual HP Zip file upgrade
download.
> >
> > Which ROM version? 2.15 or an earlier one? Were the instructions in a PDF or
just plain text?
> >
> > If it was an earlier one, you should grab 2.15
http://www.hpcalc.org/details.php?id=7097
> >
> > TW
> >
> Yes the original instructions were a combination of the PDF included with the
zip 2.15 rom upgrade file and what the connectivity software told me to do. Also
the SD card method, I never got it to work as the Version 2.15 PDF file said, it
always reset, no matter waiting what I think was.5 up to 3 seconds before
pressing the +- keys.
>
> In a previous message I posted a link to some instructions that worked
perfectly. My rom I think was 2.09 before I upgraded to 2.15.
>
> Sure seems to me in a future update HP could include placing the HP50G into
upgrade mode via the conectivity kit. Then one would not have to stand in his or
her head to get the thing into a mode to allow upgrades.
>
> I don't visit this forum very often so sorry for the delay in the reply.
>
> Gary Fiber
>

Gary,

A number of 50g user's are experiencing the same problem and it can easily be
remedied by callling HP Calculator support at 1-800-443-1254 option 3 then
option 0. They will be able to walk you through any problem you have.

I have updated my ROM with v.2.15 and it work's very well.

--- In 50g@yahoogroups.com, "Gary" <garyfiber@...> wrote:
>
> --- In 50g@yahoogroups.com, "Tim" <timwessman@> wrote:
> >
> > > The original instructions were from the actual HP Zip file upgrade
download.
> >
> > Which ROM version? 2.15 or an earlier one? Were the instructions in a PDF or
just plain text?
> >
> > If it was an earlier one, you should grab 2.15
http://www.hpcalc.org/details.php?id=7097
> >
> > TW
> >
> Yes the original instructions were a combination of the PDF included with the
zip 2.15 rom upgrade file and what the connectivity software told me to do. Also
the SD card method, I never got it to work as the Version 2.15 PDF file said, it
always reset, no matter waiting what I think was.5 up to 3 seconds before
pressing the +- keys.
>
> In a previous message I posted a link to some instructions that worked
perfectly. My rom I think was 2.09 before I upgraded to 2.15.
>
> Sure seems to me in a future update HP could include placing the HP50G into
upgrade mode via the conectivity kit. Then one would not have to stand in his or
her head to get the thing into a mode to allow upgrades.
>
> I don't visit this forum very often so sorry for the delay in the reply.
>
> Gary Fiber
>

--- In 50g@yahoogroups.com, "Tim" <timwessman@...> wrote:
>
> > The original instructions were from the actual HP Zip file upgrade download.
>
> Which ROM version? 2.15 or an earlier one? Were the instructions in a PDF or
just plain text?
>
> If it was an earlier one, you should grab 2.15
http://www.hpcalc.org/details.php?id=7097
>
> TW
>
Yes the original instructions were a combination of the PDF included with the
zip 2.15 rom upgrade file and what the connectivity software told me to do. Also
the SD card method, I never got it to work as the Version 2.15 PDF file said, it
always reset, no matter waiting what I think was.5 up to 3 seconds before
pressing the +- keys.

In a previous message I posted a link to some instructions that worked
perfectly. My rom I think was 2.09 before I upgraded to 2.15.

Sure seems to me in a future update HP could include placing the HP50G into
upgrade mode via the conectivity kit. Then one would not have to stand in his or
her head to get the thing into a mode to allow upgrades.

I don't visit this forum very often so sorry for the delay in the reply.

Gary Fiber

For polynomial regression I find the PREGR useful:

hp48
http://www.hpcalc.org/details.php?id=1263

hp49
http://www.hpcalc.org/details.php?id=3151

--- In 50g@yahoogroups.com, "geoyaaoo" <geoyaaoo@...> wrote:
>
> --- In 50g@yahoogroups.com, "dilsinho_uff" <dilsinho_uff@> wrote:
> >
> > I do not obtain to make regression in the calculator. Somebody knows to
make?
> >
> > Não consigo fazer regressão na calculadora. Alguém sabe fazer?
> >
> > Edilson - Brazil
> >
>
> go to this address
>
http://tech.groups.yahoo.com/group/50g/files/%20Basic%20Variance-Covariance%20Ma\
trices/
>

--- In 50g@yahoogroups.com, "dilsinho_uff" <dilsinho_uff@...> wrote:
>
> I do not obtain to make regression in the calculator. Somebody knows to make?
>
> Não consigo fazer regressão na calculadora. Alguém sabe fazer?
>
> Edilson - Brazil
>

go to this address
http://tech.groups.yahoo.com/group/50g/files/%20Basic%20Variance-Covariance%20Ma\
trices/

> The original instructions were from the actual HP Zip file upgrade download.

Which ROM version? 2.15 or an earlier one? Were the instructions in a PDF or
just plain text?

If it was an earlier one, you should grab 2.15
http://www.hpcalc.org/details.php?id=7097

TW

--- In 50g@yahoogroups.com, "Tim" <timwessman@...> wrote:
>
> > Well after I whined here I found a web page that described how to do the
upgrade. It seemd to have worked perfectly. I was trying to use the instructions
that came with the rom upgrade and they don't work for me in either SD card or
USB cable.
>
> Which file were you using for the ROM upgrade and was the upgrade document one
that had screenshots in it? I ask because I wrote the thing and haven't heard
any bad comments on it as of yet and want to know what happened so it can be
fixed. Also, please check out this video. Were you using +/- instead of the plus
and minus keys?
>
> http://www.youtube.com/watch?v=QttezbbytsM
>
> TW
>
The original instructions were from the actual HP Zip file upgrade download. I
did use the + and - keys held them for 3 seconds while pushing the reset as the
HP instructions said to do. That never did a thing. The instructions that come
up with the USB upgrade did not work for me either. This
linkhttp://www.educalc.net/2137081.page did the trick. The HP-50 upgraded just
fine and even got the libs to upgrade too.

I found this link from another link in a message posted in the HP-50G forum on
the HP web page. Sure was a long way to go to find out HP's instructions appear
to be wrong as sent in the zip file and find out how to upgrade my HP-50G.

Gary

> Well after I whined here I found a web page that described how to do the
upgrade. It seemd to have worked perfectly. I was trying to use the instructions
that came with the rom upgrade and they don't work for me in either SD card or
USB cable.

Which file were you using for the ROM upgrade and was the upgrade document one
that had screenshots in it? I ask because I wrote the thing and haven't heard
any bad comments on it as of yet and want to know what happened so it can be
fixed. Also, please check out this video. Were you using +/- instead of the plus
and minus keys?

http://www.youtube.com/watch?v=QttezbbytsM

TW

--- In 50g@yahoogroups.com, "Gary" <garyfiber@...> wrote:
>
> The HP-50G is such a pain in the backside to get into upgrade mode.
>
> I can't go to the upgrade mode to save my life. Did it once about a year ago.
It just keeps resetting. and pressing the +_ and the reset hole with a paper
clip, it takes two people. In this day and age with microprocessors HP surely
could have made it easier to do. Let the software place the calculator into
download mode. Sheesh. My Ti-89 is easier to upgrade.
>
> Guess I'll just keep the old rom.
>
Well after I whined here I found a web page that described how to do the
upgrade. It seemd to have worked perfectly. I was trying to use the instructions
that came with the rom upgrade and they don't work for me in either SD card or
USB cable. Here is the web page link.
http://www.educalc.net/2137081.page

Gary

The HP-50G is such a pain in the backside to get into upgrade mode.

I can't go to the upgrade mode to save my life. Did it once about a year ago. It
just keeps resetting. and pressing the +_ and the reset hole with a paper clip,
it takes two people. In this day and age with microprocessors HP surely could
have made it easier to do. Let the software place the calculator into download
mode. Sheesh. My Ti-89 is easier to upgrade.

Guess I'll just keep the old rom.

J wrote:
> Hi all
> I want to assign a key to to decimal to fraction converstion. I found
> instructions on the net but they are HORRIBLE for the novice. If you
> know how can you send me DETAILED instructions, step-by-step, including
> what do I do after I press StoreKey so it is saved (for use more than
> once). This regards the HP50g. thank you

OK, generally:

Most things on the 50G work a bit more easily in RPN mode (and that's
the only mode I use) so these instructions presume that you are that
mode, and also that you are using the "soft menus" instead of the
"choose boxes".  Both settings are available by pressing the MODE key,
but the "soft menu" is under the FLAGS option, option -117.

That done, the steps are:

1) pick one of the available decimal-to-fraction functions
2) make a program that calls it
3) pick a key to which you will assign the program
4) assign it
and optionally
5) save the configuration somewhere so that you can easily restore it

In detail:

1) Leaving aside for now the possibility of writing your own program,
the main choices are: \->Q, \->Q\pi, and XQ.  (These "\->" things are
7-bit representations of symbols not found in ASCII, the kind of thing
familiar to C programmers, as explained here:
http://groups.google.com/group/comp.sys.hp48/msg/52e9cc3ee2b369b8
Briefly, the "\->" is the right-arrow symbol found on the keyboard at
right-shift 0, and the "\pi" is the Pi symbol found at left-shift SPC.
    Many RPL functions which convert one data type to another start with
or contain the right arrow.)  \->Q converts a real (a decimal number) to
an algebraic fraction, e.g. .55 becomes '11/20'.  "\->Q\pi" does the
same but in terms of pi if possible, so .55 becomes '11/20' and
1.72787595947 becomes '11/20*\pi'.  If you want to play with these for a
bit, they are found in the CONVERT menu in the REWRITE submenu.  XQ is
similar to \->Q\pi.  So let's use it for this.

2) The simplest program that calls XQ in RPN mode is \<< XQ \>>.  The
double-angle-brackets are the program delimiters, and are found on
right-shift +.  Press that, then press alpha and then X, then alpha and
then Q.  Press ENTER.  You should have \<< XQ \>> on the stack.

3) Now to pick a key.  In a basic 50G, there are six shift states you
can or should use: unshifted, alpha,  left shift, left shift held, right
shift, and right shift held.  Most keys have default functions assigned
for unshift, alpha, left, and right; only a few have functions assigned
to the held shifts as well (for instance right-shift-held ENTER toggles
between exact and approx mode).  Therefore, unless you want to overwrite
some default assignment you don't care for, try to use a combo that
isn't currently used, like left-shift-held ENTER (I'm going to start
using RS and LS for right and left shift now...) Since RS ENTER is
already \->NUM, which is the frac-to-dec function, LS-held ENTER makes
some sense.  The key number is made up of: row number, col number,
point, shift key, held.  Row num is 1 to 10, col num is 1 to 6, shift is
0 to 3, held is 0 or 1.  The shift key numbers are in order going down,
that is, unshifted is 0, alpha is 1, LS is 2, RS is 3. Examples:

unshifted F1 key is 11.00 (row 1, col one, no shift, not held)
RS COS key is 54.30 (row 5, col 4, RS, not held)
LS-held ENTER is 105.21 (row 10, col 5, LS, held)

So now type 105.21 ENTER, so your stack has \<< XQ \>> and below that
105.21.

4) To assign the program to the key, type ASN.  Try holding down the
ALPHA key, and using your other hand to hit the A, S, and N keys, then
let go.  Press ENTER.  Both lines on the stack are processed and
disappear.  From now on, holding LS and pressing ENTER should convert a
dec to a frac.

Let me know how this goes for you.


--
Dave Boyd

----- Original Message -----

From: Nancy Von Essen

To: 50g@yahoogroups.com

Sent: Sunday, August 30, 2009 8:40 PM

Subject: Re: [50g] help Ajuda

 

Wagner    Ed here       simple method         key in    3   0  0   ENTER         key in    value of   f          key in    +         you may also make an equation    let me know and I will give further info.          there is also a good tutorial     Thiel College    I can send a link.          Best    Ed --- On Sun, 8/30/09, Wagner <wjg1@....br> wrote: From: Wagner <wjg1@....br> Subject: [50g] help Ajuda To: 50g@yahoogroups.com, "hpclub" <hpclub@yahoogrupos.com.br> Date: Sunday, August 30, 2009, 3:41 PM   Hello to all you! I have one problem: I have this equation L=300/f, where f it is one variable, just i can input Ok does HP50 have the function INPUT Olá a todos Eu tenho um problema Eu tenho esta equação L=300/f, aonde f é uma variável, justamente a qual eu quero inserir Na HP50 tem a função INPUT Thank you Wagner São Paulo Brazil

--- In 50g@yahoogroups.com, J <professorman40@...> wrote:
>
> Hello:
> How can I get the Hp50g do find the Anti-Derivatives? (and also Derivates)???
(can you give me some detail since this calculator is a littel complicated?).
> �
> thank you
>
>
> �
>
Anti-Derivatives are integrals. The HP50G has an integral on the keyboard, but
not the indefinite, which is probably what you want. The Calculus menu has a
function called INTVX, which is the indefinite. Put your function on the stack
in terms of X, then use the INTVX.

For the derivative, use DERVX, rather than the one on the keyboard. You can map
those to the keys to replace the ones on there, but that's another thread. I
don't want to confuse.

Hope this helps.

http://www.hpcc.org/datafile/V21N1/neural1.html
http://www.hpcc.org/datafile/V21N2/neural2.html
http://www.hpcc.org/datafile/V21N2/NEURALS.ZIP

Try this.

Step 1: Enter 2 equations into a list...

{'10-X'='2*X-2*Y' '10-X'='Y+3'}

Step 2: Store this list into EQ...

'EQ' STO

Type MINIT and press ENTER
Type MSOLVR and press ENTER

That's the old school way of doing it. I think you can do the same thing from
the NUMSLV menu after step 2. Or you can get to the MES menu if you...
Type 116 MENU and press ENTER (I suspect you can't get to the MES menu directly
on anything later than the HP48)



--- On Wed, 8/19/09, edilson_uff <dilsinho_uff@...> wrote:

> From: edilson_uff <dilsinho_uff@...>
> Subject: [50g] As I make to decide multiple equations/Como faço para resolver
multipla equações
> To: 50g@yahoogroups.com
> Date: Wednesday, August 19, 2009, 2:44 PM
> I do not obtain to make the
> resolution of multiple equations (MES) in the HP 50g to
> decide the equation:
>
> 10-X=2X-2Y=Y+3
>
> It would like to get the resolution of this system for the
> values of X and Y.
>
> xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>
> Não consigo fazer a resolução de multiplas equações
> (MES) na HP 50g para resolver a equação:
>
> 10-X=2X-2Y=Y+3
>
> Gostaria de obter a resolução deste sistema para os
> valores de X e de Y.
>
> Edilson - Brasil
>