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Texas Instruments TI-84 Plus Manual

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Appendix B: Reference Information 390
INVALID DIMENSION
•The ERR:INVALID DIMENSION 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 C
. (You will see TEST MODE in the status bar. See the instructions
under Important Things to Know about your TI-84 Plus C, 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 CHANGE
•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.
Error Type Possible Causes and Suggested Remedies
… 397 …


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