The Museum of HP Calculators

HP Forum Archive 16

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hp-45
Message #1 Posted by CT on 15 Aug 2006, 5:49 p.m.

My HP-45 handheld calculator is still going strong and the only one I can use. I didn't realize it was so "old" until I got on this forum. For some reason, the decimals and commas have interchanged , i.e., 1.300,00 instead of 1,300.00. I changed out the batteries, but that wasn't the problem.

Any way for me to fix this?

      
Re: hp-45
Message #2 Posted by David Ramsey on 15 Aug 2006, 6:11 p.m.,
in response to message #1 by CT

Well, the HP-45 doesn't have commas in its display-- it's a red LED calculator made in the 1970s.

So the first thing to do is figure out what model calculator you're really talking about!

      
Re: hp-45
Message #3 Posted by Randy on 15 Aug 2006, 6:28 p.m.,
in response to message #1 by CT

Maybe a 15C? Try this link: Swapping comma and decimal point on the 10C series

            
Re: Or HP-41, maybe? (was hp-45)
Message #4 Posted by Jeff O. on 15 Aug 2006, 10:39 p.m.,
in response to message #3 by Randy

Maybe it's an HP-41. Radix and thousands separators are controlled by setting/clearing flags 28 and 29, if I recall correctly. I don't recall the proper settings for x,xxx,xxx.xxxx display.

                  
Re: Or HP-41, maybe? (was hp-45)
Message #5 Posted by Vieira, Luiz C. (Brazil) on 16 Aug 2006, 12:59 a.m.,
in response to message #4 by Jeff O.

Hi, Jeff;

just to refresh (hope I am correct, too). Both flags are set as default: dot as decimal separator (flag 28), radix and thousands marks visible (flag 29).

Flag 28 controls swapping and flag 29 controls showing radix and thousands marks. If flag 29 is cleared, FIX 0 allows integers to be shown without any marks at all, but the integer number must fit in 10 digits. Otherwise, any existing decimal digits (i.e., fraction part not equal zero) will oblige the radix mark to be shown, regardless flag 29 status.

Cheers.

Luiz (Brazil)

Edited: 16 Aug 2006, 1:02 a.m.


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