Operation Manual

Reference Information B-7
8299APPB.DOC TI-82, Appendix B, English Bob Fedorisko Revised: 02/09/01 9:46 AM Printed:
02/09/01 12:44 PM Page 7 of 12
Error Conditions
When the TI
.
82 detects an error, it displays ERR: message and the error menu.
The general procedure for correcting errors is described on page 1
.
22. Each error
type, including possible causes and suggestions for correction, are shown
below.
ARGUMENT
A function or instruction does not have the correct number of
arguments. See Appendix A and the appropriate chapter.
BAD GUESS
¦
For a
CALC
operation,
Guess
must be between
Lower Bound
and
Upper Bound
.
¦
For the
solve(
function,
guess
must be between
lower
and
upper
.
¦
The guess and several points around it are undefined.
Examine a graph of the function. If the equation has a solution,
change the bounds and/or the initial guess.
BOUND
¦
For a
CALC
operation , you must define
Lower Bound
<
Upper Bound
.
¦
For
fMin(
,
fMax(
,
fnInt(
, and
solve(
,
lower
must be less than
upper
.
BREAK
You have pressed the
É
key to break execution of a program,
halt a
DRAW
instruction, or stop evaluaton of an expression.
DATA TYPE
You have entered a value or variable that is the wrong data
type.
¦
A function (including implied multiplication) or an
instruction has an argument that is an invalid data type; for
example, a list where a real number is required. See
Appendix A and the appropriate chapter.
¦
In an editor, you have entered a type that is not allowed; for
example, a matrix as an element in the
STAT
list editor. See
the appropriate chapter.
¦
You are attempting to store to an incorrect data type; for
example, a matrix to a list.
DIM MISMATCH
You are attempting to perform an operation that has more than
one list or matrix, but the dimensions do not match.