HP Forum Archive 21

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HP 50g store/recall with only 2 keys Message #1 Posted by daniel4 on 29 Mar 2012, 2:31 p.m. Hi, I upgraded from the HP 32Sii to the 50g, but I miss one feature: quick store/recall into single-letter variables. 100 STO M RCL M On the 50g, this is more complicated: 100 ENTER ' ALPHA M STO ' ALPHA M LEFTSHIFT RCL Is there a way to accelerate this? The VAR menu is a start, but it displays only 6 variables. For most quick calculations, I don't need long variable names, just the 26 single-letters. Thanks, Daniel

Re: HP 50g store/recall with only 2 keys Message #2 Posted by M. Joury on 29 Mar 2012, 3:09 p.m., in response to message #1 by daniel4 Some time back (many, many years ago) when I first transitioned to the HP48 series from the HP41 I missed the STO xx functionality of the older calc. I ended up writing a set of SysRPL routines that emulated the HP41 down to the quick single key entry using the top two rows of keys (with the HP41 you could use the top two rows as single key replacements for 01, 02, 03..., 10). The code worked on both the S/X and G/X calculators but I never ported it to the 49g or 50g models. The point I am getting at is that it should be possible for you to write a few short routines to emulate the functionality you want. I might tackle the job just for the fun of it if I can find the time but right now my day job has me mostly swamped. If you want my original code I might be able to track it down. I still use that library on my 48 machines but finding the source could take me a little while. Cheers, -Marwan

Re: HP 50g store/recall with only 2 keys Message #3 Posted by Gilles Carpentier on 29 Mar 2012, 4:10 p.m., in response to message #1 by daniel4 You can use "soft menu" I suppose you are in RPL mode To create the first time 100 M STO (no need of '' if M does not exist. Just 100 ALPHA M STO If M exist and you want to change the value : 110 Leftshift Softkey put the value in the selected softkey variable To RCL the data,just clic the soft menu. If the variable is not visible then NXT (or PRV) or just ALPHA M (and ENTER if needed or operator) (same that '' ALPHA M ENTER RCL in 2 keystroke) To order your variables wich is very usefull , just do {} choose the order you want with '' softkey then ORDER (PRG MEM DIR menu) same way to delete several vaiables with PURGE (PRG MEM menu) VAR is interesting to see your variables LeftShift NXT (without releasing LeftShift before clic NXT) is very very interesting to display the last menu you want from)and toogle between VAR and a MENU hope this help There is a lot of usefull keyboard shortcut on the 50, have a look in the manuel Edited: 29 Mar 2012, 6:12 p.m. after one or more responses were posted

Re: HP 50g store/recall with only 2 keys Message #4 Posted by M. Joury on 29 Mar 2012, 4:29 p.m., in response to message #3 by Gilles Carpentier This is the approach that I usually use. But since the OP mentioned the "VAR" menu I thought that he was aware of it but was not satisfied with having only 6 variables showing at a time. I personally find that this (6 storage locations) is generally sufficient for most keyboard calculations. After about 6 items I lose track of what is where. The other thing I will do for calculations that I repeat often but have no need to write a program for is to set up groups of named variables in sub-directories. That way I can use the names to keep track of what I am doing and still have one or two key access. Cheers, -Marwan Edited: 29 Mar 2012, 4:42 p.m.

Re: HP 50g store/recall with only 2 keys Message #5 Posted by Gilles Carpentier on 29 Mar 2012, 5:05 p.m., in response to message #4 by M. Joury I agree... I like the way the 48/50 does. But if it's a problem one simple way is to use the user keys To RCL just : ALPHA A (2 keys) to store : Left USER A (3 keys) And run once : { « 'A' STO » 11.0 « 'B' STO » 12.0 .... « 'Z' STO » 65.0 } STOKEYS To be honest the RCL could be sometime 3 clic A B + 'C' STO give ALPHA A ENTER ALPHA B + LEFT USER C (9 clics) It's possible but i don't like this with the 'soft menu', it's only 5 clics ( if all variables are visibles) CLIC_A CLIC_B + LEFT CLIC_C ( 5 clics) to compare with my old Casio 602P MR 0 1 + MR O 2 = Min 0 3 ( 11 clics) And (i suppose) for the 32sii RCL A RCL B + STO C (7 keys) Edited: 29 Mar 2012, 6:16 p.m. after one or more responses were posted

Re: HP 50g store/recall with only 2 keys Message #6 Posted by M. Joury on 29 Mar 2012, 5:17 p.m., in response to message #5 by Gilles Carpentier The ability to fully reassign the keyboard in the 41/48/49/50 calculators is one of their greatest assets IMHO. Cheers, -Marwan

Re: HP 50g store/recall with only 2 keys Message #7 Posted by Gerson W. Barbosa on 29 Mar 2012, 5:26 p.m., in response to message #1 by daniel4 http://www.hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/archv016.cgi?read=105002 HTH Gerson.

Re: HP 50g store/recall with only 2 keys Message #8 Posted by Gilles Carpentier on 29 Mar 2012, 5:37 p.m., in response to message #7 by Gerson W. Barbosa :D beautiful ! But i think the best is to do with the 48/50 logic ;)

Re: HP 50g store/recall with only 2 keys Message #9 Posted by David Hayden on 30 Mar 2012, 4:19 p.m., in response to message #1 by daniel4 I don't have the code right now to share, but here's how I handled this. I wrote two commands: STOn and RCLn and assigned them to the STO and RCL key positions. The programs let your store/recall values to variables called R0, R1, R2, .... For example 123 0 STOn will store 123 in R0. 0 RCLn will recall R0. The nice thing is that if level 1 doesn't contain an integer number then STOn and RCLn will execute STO and RCL instead. Thus they are completely compatible with STO and RCL so you can leave them assigned to the keys. Dave

Re: HP 50g store/recall with only 2 keys Message #10 Posted by Cristian Arezzini on 30 Mar 2012, 6:10 p.m., in response to message #9 by David Hayden This seems one of the best solutions... I'll try to code the same thing myself! Thanks! :)

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