Texas Instruments TI-84 User Manual
Page 655
Appendix B: Reference Information
652
MODE
You attempted to store to a window variable in another
graphing mode or to perform an instruction while in the
wrong mode; for example, DrawInv in a graphing mode
other than Func.
NO SIGN CHNG
•
The
solve(
function or the equation solver did not
detect a sign change.
•
You attempted to compute
æ
when
FV
, (
Ú…
PMT
),
and
PV
are all
‚
0, or when
FV
, (
Ú…
PMT
), and
PV
are
all
_
0.
•
You attempted to compute
irr(
when neither
CFList
nor
CFO
is > 0, or when neither
CFList
nor
CFO
is
< 0.
NONREAL ANS
In Real mode, the result of a calculation yielded a
complex result. This error is not returned during
graphing. The TI-84 Plus allows for undefined values on
a graph.
OVERFLOW
You attempted to enter, or you have calculated, a
number that is beyond the range of the graphing
calculator. This error is not returned during graphing.
The TI-84 Plus allows for undefined values on a graph.
RESERVED
You attempted to use a system variable inappropriately.
See Appendix A.
Error Type
Possible Causes and Suggested Remedies