Operation Manual

B-10 Reference Information
8299APPB.DOC TI-82, Appendix B, English Bob Fedorisko Revised: 02/09/01 9:46 AM Printed:
02/09/01 12:44 PM Page 10 of 12
SINGULARITY
expression
in the
solve(
function contains a singularity
(a point at which the function is not defined). Examine a
graph of the function. If the equation has a solution, change
the bounds and/or the initial guess.
STAT
You are attempting a stat calculation with lists that are not
appropriate.
¦
Statistical analyses must have at least two data points.
¦
Med
.
Med
must have at least three points in each partition.
¦
Freq
, when used, must be an integer
‚
0
.
¦
(Xmax
N
Xmin)
à
Xscl
must be

47 for a histogram.
STAT PLOT
You are trying to display a graph when there is a
StatPlot On
that uses an undefined list.
SYNTAX
The command contains a syntax error. Look for misplaced
functions, arguments, parentheses, or commas. See Appendix
A and the appropriate chapter.
TOL NOT MET
The algorithm cannot return a result accurate to the
requested tolerance.
UNDEFINED
You are referencing a variable that is not currently defined;
for example, a stat variable when there is no current
calculation because a list has been edited or when the
v
ariable is not valid for the current calculation, such as
a
after
Med
.
Med
.
WINDOW RANGE
There is a problem with the
WINDOW
variables.
¦
You may have defined
Xmax

Xmin
,
Ymax

Ymin
,
q
max

q
min
and
q
step
>
0
(or vice versa),
Tstep
=
0
, or
Tmax

Tmin
and
Tstep
>
0
(or vice versa).
¦
WINDOW
variables are too small or too large to graph
correctly, which can occur if you attempt to zoom in or out
so far that you are not within the numerical range of the
calculator.
ZOOM
A point or a line, rather than a box, is defined in
ZBox
or a
math error resulted from a
ZOOM
operation.