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Thread
2007-02-26 by Gordon Ayres
funny thing I have claculator mode RPN set. When i do rpn operation for * + or - works as expected. When I divide a number like 3 by 2 it shows 3/2 in the stack and does not return 1.5 as expected? any help apreciated. Best regards Gordon
2007-02-26 by Scott
--- In 50g@yahoogroups.com, "Gordon Ayres" <gordon.ayres@...> wrote: > > funny thing > > I have claculator mode RPN set. > > When i do rpn operation for * + or - works as expected. When I divide > a number like 3 by 2 it shows 3/2 in the stack and does not return 1.5 > as expected? > > any help apreciated. > > Best regards > Gordon > Hi, Gordon, The 50G uses "infinite precision integers" (ZINTS) when in "exact" mode (i.e., 4 ENTER 3 / produces 4/3 instead of 1.33333). You know you are in exact mode with a couple of clues: (1) if you have the status area showing, you will see an "=" sign next to the "R" or "C" symbol (real or complex mode), and (2) numbers you enter without a decimal point (e.g., 1, 2, 3, etc.) will show up without a decimal point on the stack. In approximate mode, a tilde "~" in the status area will appear in the same spot as the "=" sign, above. Also, entering numbers without decimal points (e.g., 1, 2, 3, etc.) will produce numbers WITH decimal points on the stack (e.g., 1., 2., 3., etc.), even with STD display formatting. To convert 4/3 into a numeric equivalent, press right-shift and then press "Enter" (which is ->NUM). This will display 1.3333 according to your display mode. If you'd like to temporarily force an approximate display, put a decimal point after one or more of your numbers that you will enter (e.g., 4./3, or 4/3., or 4./3.). This will return the result in approximate mode and display 1.333. To toggle between exact and approximate modes quickly, use the long- hold keypress combination as follows: While pressing (AND HOLDING) the right-shift key, press and release the enter key. You can now release the right-shift key. In doing so, pay attention to your status area. You should see the "=" sign turn into a "~" sign and vice-versa. There are many of these long-hold keypresses available on the HP50G, e.g., to enter certain characters or toggle between real and complex mode. Hope that helps some, Scott
2007-02-26 by svraman
Hi Gordon, Look on the top line in display. Does it show = next to R? If so your calculator flag 105 is set to Exact mode. Set it to Approx mode. Now your display will show ~ instead of = and your answer will be 1.5 or however many decimals you have set it to be. Sincerely, Raman
From: Scott <blueelectron@...>
Date: 2007/02/25 Sun PM 08:56:30 CST
To: 50g@yahoogroups.com
Subject: [50g] Re: divide
--- In 50g@yahoogroups.com, "Gordon Ayres" <gordon.ayres@...> wrote:
>
> funny thing
>
> I have claculator mode RPN set.
>
> When i do rpn operation for * + or - works as expected. When I divide
> a number like 3 by 2 it shows 3/2 in the stack and does not return 1.5
> as expected?
>
> any help apreciated.
>
> Best regards
> Gordon
>
Hi, Gordon,
The 50G uses "infinite precision integers" (ZINTS) when in "exact" mode
(i.e., 4 ENTER 3 / produces 4/3 instead of 1.33333). You know you are
in exact mode with a couple of clues: (1) if you have the status area
showing, you will see an "=" sign next to the "R" or "C" symbol (real
or complex mode), and (2) numbers you enter without a decimal point
(e.g., 1, 2, 3, etc.) will show up without a decimal point on the stack.
In approximate mode, a tilde "~" in the status area will appear in the
same spot as the "=" sign, above. Also, entering numbers without
decimal points (e.g., 1, 2, 3, etc.) will produce numbers WITH decimal
points on the stack (e.g., 1., 2., 3., etc.), even with STD display
formatting.
To convert 4/3 into a numeric equivalent, press right-shift and then
press "Enter" (which is ->NUM). This will display 1.3333 according to
your display mode.
If you'd like to temporarily force an approximate display, put a
decimal point after one or more of your numbers that you will enter
(e.g., 4./3, or 4/3., or 4./3.). This will return the result in
approximate mode and display 1.333.
To toggle between exact and approximate modes quickly, use the long-
hold keypress combination as follows: While pressing (AND HOLDING) the
right-shift key, press and release the enter key. You can now release
the right-shift key. In doing so, pay attention to your status area.
You should see the "=" sign turn into a "~" sign and vice-versa. There
are many of these long-hold keypresses available on the HP50G, e.g., to
enter certain characters or toggle between real and complex mode.
Hope that helps some,
Scott
svraman
1881 Rampart Lane
Lansdale, PA 19446
(215) 368-27532007-02-26 by Nancy Von Essen
funny thing
I have claculator mode RPN set.
When i do rpn operation for * + or - works as expected. When I divide
a number like 3 by 2 it shows 3/2 in the stack and does not return 1.5
as expected?
any help apreciated.
Best regards
Gordon
2007-02-26 by DRD
Hold right-shift then ENTER (Toggles Exact and Approximate mode.)
-----Original Message----- From: 50g@yahoogroups.com [mailto:50g@yahoogroups.com] On Behalf Of Nancy Von Essen Sent: Monday, February 26, 2007 3:41 PM To: 50g@yahoogroups.com Subject: Re: [50g] divide Hi Gordon: Ed Von Essen here. One last way to set approximate mode. Press the MODE key, then press F3 soft key ( CAS ) , move the highlight bar down to _Approx. and finally press the F3 soft key ( CHK ). One might also have Numeric checked. Have fun learning how to use the 50G. It's really amazing what you can do. Best regards Ed Gordon Ayres <gordon.ayres@...> wrote: funny thing I have claculator mode RPN set. When i do rpn operation for * + or - works as expected. When I divide a number like 3 by 2 it shows 3/2 in the stack and does not return 1.5 as expected? any help apreciated. Best regards Gordon
2007-02-26 by Gordon Ayres
I think that is simplest way yet. Thanks for everyones help. Seems there are a lot of ways to do something. Best regards Gordon --- In 50g@yahoogroups.com, "DRD" <wa7bqb@...> wrote: > > Hold right-shift then ENTER (Toggles Exact and Approximate mode.) > > -----Original Message----- > From: 50g@yahoogroups.com [mailto:50g@yahoogroups.com] On Behalf Of Nancy > Von Essen > Sent: Monday, February 26, 2007 3:41 PM > To: 50g@yahoogroups.com > Subject: Re: [50g] divide > > > > Hi Gordon: Ed Von Essen here. One last way to set approximate mode. > > > > Press the MODE key, then press F3 soft key ( CAS ) , move the highlight bar > down to _Approx. and finally press the F3 soft key ( CHK ). One might also > have Numeric checked. Have fun learning how to use the 50G. It's really
> amazing what you can do. > > Best regards Ed > > Gordon Ayres <gordon.ayres@...> wrote: > > funny thing > > I have claculator mode RPN set. > > When i do rpn operation for * + or - works as expected. When I divide > a number like 3 by 2 it shows 3/2 in the stack and does not return 1.5 > as expected? > > any help apreciated. > > Best regards > Gordon >
2007-02-27 by Don Hart
I don't think it's been mentioned yet, but if you have 3/2 on the stack, you can just hit the ->num key (right-shift enter) to get the decimal. That way you stay in the exact mode. --- Gordon Ayres <gordon.ayres@...> wrote: > I think that is simplest way yet. Thanks for > everyones help. Seems > there are a lot of ways to do something. > > Best regards > Gordon > > > --- In 50g@yahoogroups.com, "DRD" <wa7bqb@...> > wrote: > > > > Hold right-shift then ENTER (Toggles Exact > and Approximate mode.) > > > > -----Original Message----- > > From: 50g@yahoogroups.com > [mailto:50g@yahoogroups.com] On Behalf Of > Nancy > > Von Essen > > Sent: Monday, February 26, 2007 3:41 PM > > To: 50g@yahoogroups.com > > Subject: Re: [50g] divide > > > > > > > > Hi Gordon: Ed Von Essen here. One last way to > set approximate mode. > > > > > > > > Press the MODE key, then press F3 soft key ( CAS ) > , move the > highlight bar > > down to _Approx. and finally press the F3 soft > key ( CHK ). One > might also > > have Numeric checked. Have fun learning how to > use the 50G. It's > really > > amazing what you can do. > > > > Best regards Ed > > > > Gordon Ayres <gordon.ayres@...> wrote: > > > > funny thing > > > > I have claculator mode RPN set. > > > > When i do rpn operation for * + or - works as > expected. When I divide > > a number like 3 by 2 it shows 3/2 in the stack and > does not return 1.5 > > as expected? > > > > any help apreciated. > > > > Best regards > > Gordon > > > > > > > ------------------------ Yahoo! Groups Sponsor > --------------------~--> > Something is new at Yahoo! Groups. Check out the > enhanced email design. > http://us.click.yahoo.com/kOt0.A/gOaOAA/yQLSAA/26EolB/TM > --------------------------------------------------------------------~-> > > > > Yahoo! Groups Links > > > > > ____________________________________________________________________________________ The fish are biting. Get more visitors on your site using Yahoo! Search Marketing. http://searchmarketing.yahoo.com/arp/sponsoredsearch_v2.php