HP Forum Archive 06

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Currency Converter for HP41 Message #1 Posted by Erik van der Meulen (Netherlands) on 21 Sept 2001, 8:05 a.m. Hi all, I have recently revived my interest in my old HP41's and need to say that this site has a lot to do with that! Wonderful to see all these people interested in 'ancient state of the art technology'. Thanks. Now my question, since we in Europe will shortly all convert our local currencies to Euro's, I checked the Archive for a Currency Converter for my 41. Did not find anything. Does anyone know of a suitable program? I know it should not be too much of an issue to write one, but I have not programmed the 41 (or anything) for well over 10 years. It will take a few hours to get back into it... Thanks a lot, Erik NB I suppose a Euro symbol on the 41 will be too much to ask for ;-)

Re: Currency Converter for HP41 Message #2 Posted by Ex-PPC member on 21 Sept 2001, 9:49 a.m., in response to message #1 by Erik van der Meulen (Netherlands) In PRGM mode, key in the following program: LBL "E2G" 2.20371 * END LBL "G2E" 2.20371 / END Now, to convert from euros to Netherland's Guilders, simpley key in the amount in eurosd an XEQ "E2G". To perform the opposite conversion, key in the amount in Netherland Guilders and XEQ "G2E". If you assign those labels to some suitable keys, you can do the conversion by pressing a single key, or shif-key. In case you don't remember how to make an assignment, it goes like this: press ASN, then key in the name of the label (E2G or G2E), then press the key you want to assign it to. Hope that helps. Best regards.

Re: Currency Converter for HP41 Message #3 Posted by thibaut.be on 21 Sept 2001, 10:02 a.m., in response to message #2 by Ex-PPC member Yes, it is as simple as that. You could also assign the E2G program to the LN key, so that in USER mode it is only 1 key to convert. The € sign is quite difficult to program, though it is possible to design new characters. The best sign would be something like that : matrix € I\/I / -- - I/\I \ which is possible on a 41.

Re: Currency Converter for HP41 Message #4 Posted by Erik van der Meulen (Netherlands) on 21 Sept 2001, 10:53 a.m., in response to message #3 by thibaut.be Thanks a lot for that. But I had figured that out! I was hoping to find an application that was a little more sophisticated, like handling different (European) currencies and converting between those... More thoughts? Erik

Re: Currency Converter for HP41 Message #5 Posted by norman wolfe on 27 Sept 2001, 7:27 a.m., in response to message #1 by Erik van der Meulen (Netherlands) WCC - Worldwide Currency Converter by Peter Thelin of Newark, CA is in PPC Journal, V12 N5 (May 1985) page 18-20. Includes program listing and barcode. I successfully used this program for 10 years until it was replaced by a program built into the 200LX.

Re: Currency Converter for HP41 Message #6 Posted by Erik van der Meulen (Netherlands) on 27 Sept 2001, 2:58 p.m., in response to message #5 by norman wolfe Thanks a lot! That looks just like what I was hoping for. Does anyone have a pointer as to where to find the PPC Journals? Or maybe just the listing of that program? I have checked the Internet (google) but the Journal Archives only seem to ba available from commercial CD's. as far as I have seen... Best regards. Erik

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