HP Forum Archive 20

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HP 41CX Message #1 Posted by Forrest Butler on 3 Feb 2011, 3:54 p.m. I've had the referenced HP since 1980 (or so) and still use it daily in my work - RPN is far more efficient in my view. Recently, my HP replaced the decimal point with a comma, and no longer utilizes commas to separate thousands. I removed the battery for four hours hoping it would reboot to the original default position, but that hasn't helped. Does anyone on this forum have an idea how to correct this "problem"?

Re: HP 41CX Message #2 Posted by Andrés C. Rodríguez (Argentina) on 3 Feb 2011, 4:07 p.m., in response to message #1 by Forrest Butler The "radix mark" (comma or dot) is the symbol which separates integer and fraction part of numbers. The selection of radix mark and enabling or disabling the digits-grouping (separating thousands groups using dot or comma) are controlled by flags 28 and 29. You use the SET FLAG (SF) and CLEAR FLAG (CF) functions to set these features to suit your preferences. To SET FLAG use the yellow SHIFT key and the "7" key, to CLEAR FLAG, use the yellow SHIFT key and the "8" key. For instance, to use a dot as radix mark, and to enable the digits grouping feature, you should SF 28 and SF 29. HTH

Re: HP 41CX Message #3 Posted by Gerson W. Barbosa on 3 Feb 2011, 4:10 p.m., in response to message #1 by Forrest Butler Quote: Recently, my HP replaced the decimal point with a comma, and no longer utilizes commas to separate thousands. Like this? I would leave it this way :-) Now seriously, from the HP-41CX Quick Reference Guide: Flag Flag Name Status at Reset, Number Turn ON 28 Radix Mark 1 29 Digit Separator Mark 1 So, try SF 28 and SF 29. Regards, Gerson. Edited per Andrés's correction below. Edited: 3 Feb 2011, 4:53 p.m. after one or more responses were posted

Re: HP 41CX Message #4 Posted by Andrés C. Rodríguez (Argentina) on 3 Feb 2011, 4:40 p.m., in response to message #3 by Gerson W. Barbosa Well, these functions are not postfix (perhaps on RPL machines they are so). On the HP 41 you do SF (or CF) and then type the appropriate flag number as prompted on the display. So it is SF xx or CF xx. Regards,

Re: HP 41CX Message #5 Posted by Gerson W. Barbosa on 3 Feb 2011, 4:50 p.m., in response to message #4 by Andrés C. Rodríguez (Argentina) ˇGracias, Andrés! Gerson.

Re: HP 41CX Message #6 Posted by Karl-Ludwig Butte on 3 Feb 2011, 4:16 p.m., in response to message #1 by Forrest Butler Hello Forrest, there are two display control flags in the HP-41: - Decimal Point Flag = Flag 28 - Digit Grouping Flag = Flag 29 If flag 28 is set, the decimal point is the radix and the comma is the seperator. If flag 28 is cleared, the comma is the radix and the decimal point is the seperator. If flag 29 is set, seperators will be displayed. Hope this helps. Regards Karl

Re: HP 41CX Message #7 Posted by Martin Pinckney on 3 Feb 2011, 4:27 p.m., in response to message #6 by Karl-Ludwig Butte Same answer, three different ways. Such service. [;-)

Re: HP 41CX Message #8 Posted by Forrest Butler on 3 Feb 2011, 5:23 p.m., in response to message #7 by Martin Pinckney Beautiful - thank you very much for your quick (and overwhelming) response. Once upon a time I frequently utilized my HP in the engineering field and recognized its power directly or through my Owner's Manual - but now, not so much. Still a great calculator and equally so, those on this forum that love it as I have. Thanks again for your assistance.

Re: HP 41CX Message #9 Posted by Mike Morrow on 3 Feb 2011, 8:55 p.m., in response to message #1 by Forrest Butler Quote: I've had the referenced HP since 1980 (or so)... I believe the "or so" part. The HP41-CX didn't hit the street until about four years later.

Re: HP 41CX Message #10 Posted by Forrest Butler on 6 Feb 2011, 11:48 a.m., in response to message #9 by Mike Morrow Could have been 1984 - I don't remember. Had a HP 25 before that and after grad school (1975) worked with a large (2' X 3') HP with similar RPN logic and programmable capabilities at Houston Lighting & Power (HL&P) - thus, my introduction into the HP world. Fine machine and way before its time considering a mere five years earlier all we had was COBOL...

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