Calculator User Manual
B-12 Service and Warranty Information
INCREMENT
¦
The increment in 
SEQ(
 is 
0
 or has the wrong sign. This
error does not occur during graphing. The TI
-
80 allows
for undefined values on a graph.
¦
The increment in 
FOR(
 is 
0
 or has the wrong sign.
INVALID
You are attempting to reference a variable or use a function
in a place where it is not valid. For example, 
Y
n
 cannot
reference 
Y
, 
XMIN
, 
@
X
, or 
TBLMIN
.
INVALID DIM
¦
The dimension of the argument is not appropriate for the
operation.
¦
List element dimensions must be integers between 1 and
99; for example, 
L1(100)
 will cause an error.
LABEL
The label in the 
GOTO
 instruction is not defined with a 
LBL
instruction in the program.
MEMORY
¦
There is insufficient memory in which to perform the
desired command. You must delete item(s) from memory
(Chapter 12) before executing this command.
¦
Using an 
IF
/
THEN
 or 
FOR(
 with a 
GOTO
 that branches out
of the loop can also cause this error because the 
END
statement that terminates the loop is never reached.
MODE
You are attempting a 
ú
SIMP
 in 
AUTOSIMP
 mode.
NEST LEVEL
This error occurs when any nested combination of function
evaluation, 
NDERIV(
 or 
SEQ(
 exceeds 5 levels.
OVERFLOW
You are attempting to enter, or you have calculated, a
number that is beyond the range of the calculator. This error
does not occur during graphing. The TI
-
80 allows for
undefined values on a graph.










