Texas Instruments TI-73 EXPLORER - Manual (Page 343)

Appendix B: Reference Information
337
73B-ENG.DOC Appx B Reference Information, English Julie Hewlett Revised: 07/14/98 3:58 PM Printed:
05/19/99 9:04 AM Page 337 of 20
Error Type Possible Causes and Suggested Remedies
SINGULARITY
expression in the Equation Solver 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 or the
initial guess or both.
STAT
You attempted 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 data points in
each partition.
• When you use a frequency list, its elements
must be ‚0.
• (
Xmax-Xmin
)/
Xscl
must be 47 for a Histogram.
STAT PLOT
You attempted to display a graph when a stat plot
that uses an undefined list is turned on.
SYNTAX
The command contains a syntax error. Look for
misplaced functions, arguments, parentheses, or
commas. See the appropriate chapter.
UNDEFINED
You referenced a variable that is not currently
defined. For example, you referenced a stat variable
when there is no current calculation because a list
has been edited, or you referenced a variable when
the variable is not valid for the current calculation,
such as
c
after
Med-Med
.
VALIDATION
Electrical interference caused a link to fail or this
calculator is not authorized to run the application.