Texas Instruments TI-82 STATS

General Information B–9
826FEC~1.DOC TI-83 Intl English, Appendix B Bob Fedorisko Revised: 10/27/05 3:16 PM Printed: 10/27/05
3:16 PM Page 9 of 12
Error Type Possible Causes and Suggested Remedies
SINGULARITY
ex
p
ression in the solve( function or the e
q
uation solver contains
a sin
g
ularit
y
(
a
p
oint at which the function is not defined
)
.
Examine a
g
ra
p
h of the function. If the e
q
uation has a solution,
change the bounds or the initial guess or both.
STAT
You attem
p
ted 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.
¦ When you use a frequency list, its elements must be ‚ 0.
¦ (
Xmax N Xmin) à Xscl must be  47 for a histogram.
STAT PLOT
You attem
p
ted to dis
p
la
y
a
g
ra
p
h when a stat
p
lot that uses an
undefined list is turned on.
SYNTAX
The command contains a s
y
ntax error. Look for mis
p
laced
functions, ar
g
uments,
p
arentheses, or commas. See A
pp
endix A
and the appropriate chapter.
TOL NOT MET
You re
q
uested a tolerance to which the al
g
orithm cannot return
an accurate result.
UNDEFINED
You referenced a variable that is not currentl
y
defined. For
exam
p
le,
y
ou referenced a stat variable when there is no current
calculation because a list has been edited, or
y
ou referenced a
variable when the variable is not valid for the current
calculation, such as a after Med.Med.
WINDOW RANGE
A problem exists with the window variables.
¦ You defined Xmax  Xmin or Ymax  Ymin.
¦ You defined qmax  qmin and qstep > 0 (or vice versa).
¦ You attempted to define Tstep=0.
¦ You defined Tmax  Tmin and Tstep > 0 (or vice versa).
¦ Window variables are too small or too lar
g
e to
g
ra
p
h correctl
y
.
You ma
y
have attem
p
ted to zoom in or zoom out to a
p
oint that
exceeds the TI-82 STATS numerical range.
ZOOM
¦ A point or a line, instead of a box, is defined in ZBox.
¦ A ZOOM operation returned a math error.