Re: Frank, I guess you are wrong! Needs a TI-1000 Message #3 Posted by Joerg Woerner on 24 Jan 2012, 12:21 p.m., in response to message #2 by Frank Boehm (Germany)
Frank,
You can't use a HP-21!
Read the thread below this one:
HP-21 displays all zeroes
Cheers, Joerg
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