HP49G Message #1 Posted by David Youse on 6 Feb 2005, 9:39 p.m.
I've developed a problem I haven't been able to figure out. I just got a used HP49G and am trying to learn its in and outs. When I first got it, everything worked as the manual said it should. I could enter any formula or calculation and I'd get the expected answer. Hovever, a few days ago, it started doing something different.
Now, anytime I enter Anything with an unknown in it, I get an error message: "ERROR: Undefined name"
At its simplest, if I put in 2 * 2 I get the answer - 4. But if I put in 2 * X, I get the error message.
I've tried resetting everything and clearing out all the memories but there's no change.
What am I doing wrong???
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