HP 67 flag 3

[Dieter]

(05-26-2014 04:49 PM)Dave Britten Wrote:  I've been digging through the museum DVDs, and I've noticed there are lots of clever ways to use flag 3 on the HP 67 (which is set automatically whenever the user enters digits).

Yes. Of course this also works on the 97, and not only with manual data entry but as well with data cards (!).

Quote:Were there any other models that had such a flag?

Flags 22 and 23 on the 41-series have already been mentioned. That's why the official 41-series counterpart of a F?3 command when translating programs is FS?C 22. Remember, the 67/97's flags 2 and 3 are always cleared when they are tested.

BTW, the 34s also allows checks for data entry. There is a special ENTRY? command for this.

Dieter