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Most of our alpha commands are based on the ones of the HP-42S. At the beginning of the WP 34S project, we had a far larger alpha space in mind. Looking to the real HP-20b display, however, that became obsolete and thus the HP-42S alpha function set was a minimum we didn't want to fall below. Some functions also crept in for symmetry reasons without a real application backing them. I suspect [alpha]SR may be one of them but don't remember anymore. It would be easy to remove from the function set though.
d:-/
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Quote:
Alpha is fixed length. The 34S does not have a string type.
I am not sure I understand what that means. If I start with "ABCDEFGH" in alpha register and apply RR 03, I get "FGHABCDE", exactly what I expect, so it must know somehow where the string ends.