Bedienungsanleitung Texas Instruments TI-84 Plus (Seite 397 von 414) (Englisch)

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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

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