Appendix B: Reference Information 396
INVALID DIM • The ERR:INVALID DIM error message may occur if you are trying to graph a
function that does not involve the stat plot features. The error can be corrected
by turning off the stat plots. To turn the stat plots off, press
y , and
then select
4:PlotsOff.
• You specified a list dimension as something other than an integer between 1
and 999.
• You specified a matrix dimension as something other than an integer between
1 and 99.
• You attempted to invert a matrix that is not square.
ITERATIONS • The solve( function or the equation solver has exceeded the maximum
number of permitted iterations. Examine a graph of the function. If the
equation has a solution, change the bounds, or the initial guess, or both.
•
irr( has exceeded the maximum number of permitted iterations.
• When computing
æ, the maximum number of iterations was exceeded.
LABEL The label in the Goto instruction is not defined with a Lbl instruction in the
program.
LINK L1 (or any other
file) to Restore
The calculator has been disabled for testing. To restore full functionality, use
TI Connect™ software to download a file to your calculator from your
computer, or transfer any file to your calculator from another TI-84 Plus. (See
the instructions under Important Things to Know about your TI-84 Plus, earlier
in this chapter.)
MEMORY Memory is insufficient to perform the instruction or function. You must delete
items from memory before executing the instruction or function.
Recursive problems return this error; for example, graphing the equation
Y1=Y1.
Branching out of an If/Then, For(, While, or Repeat loop with a Goto also can
return this error because the End statement that terminates the loop is never
reached.
MemoryFull
• You are unable to transmit an item because the receiving unit’s available
memory is insufficient. You may skip the item or exit receive mode.
• During a memory backup, the receiving unit’s available memory is insufficient
to receive all items in the sending unit’s memory. A message indicates the
number of bytes the sending unit must delete to do the memory backup.
Delete items and try again.
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.
Error Type Possible Causes and Suggested Remedies
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