Texas Instruments TI-73 EXPLORER User Manual

Page 341

Appendix B: Reference Information

335

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 335 of 20

Error Type

Possible Causes and Suggested Remedies

ILLEGAL NEST

You attempted to use an invalid function in an
argument to a function, such as

seq(

within

expression for

seq(

Can occur when combinations of nesting of function
evaluation exceeds five levels.

INCREMENT

The increment in

seq(

is 0 or has the wrong sign. This

error is not returned during graphing. The TIN73
allows for undefined values on a graph.

The increment in a

For(

loop is 0.

INVALID

You attempted to reference a variable or use a
function where it is not valid. For example,

cannot reference

Xmin

, or

TblStart

Defining and graphing a

equation using the

variable

Ans

You attempted to use

Select(

without having selected

(turned on) at least one xyLine or Scatter plot.

INVALID DIM

You specified dimensions for an argument that are
not appropriate for the operation.

You specified a list dimension as something other
than an integer between 1 and 999.

ITERATIONS

The Equation Solver has exceeded the maximum
number of permitted iterations.

Examine a graph of the function. If the equation has
a solution, change the bounds, the initial guess, or
both.

LABEL

The label in the

Goto

instruction is not defined with a

Lbl

instruction in the program.