Texas TI-86 用户手册

99APPX.DOC   TI-86, Appendix, US English   Bob Fedorisko   Revised: 02/27/01 1:20 PM   Printed: 02/27/01 1:26 PM   Page 395 of 26

99APPX.DOC   TI-86, Appendix, US English   Bob Fedorisko   Revised: 02/27/01 1:20 PM   Printed: 02/27/01 1:26 PM   Page 395 of 26

You attempted to use an invalid function in an argument for 

 or a 

CALC

function; for example, 

.

You defined an upper bound that is less than the specified lower bound or a
lower bound that is greater than the specified upper bound.

♦ 

One or more window variable values is incompatible with the others for
defining the graph screen; for example, you defined 

 < 

.

♦ 

Window variables are too small or too large to graph correctly; for
example, you attempted to zoom out beyond the calculator’s range.

A 

ZOOM

 operation resulted in an error; you attempted to define 

 with a line.

In programming, the 

 instruction label is not defined with a 

 instruction.

♦ 

You attempted a stat calculation with at least one inappropriate list, such
as a list with less than two data points.

♦ 

At least one element of a frequency list is < 0.

♦ 

(

 

)

à

 

 63 must be true when plotting a histogram.

When converting measurements, the units are incompatible, as in volts to liters.

♦ 

In the solver editor, the equation does not contain a variable.

♦ 

You attempted to graph with the cursor positioned on bound.

In the solver editor, the equation contains a singularity, which is a point at
which the function is not defined.

The solver did not detect a sign change.

The solver has exceeded the maximum permitted number of iterations.

♦ 

The initial guess was outside the specified bounds.

♦ 

The initial guess and several points around the guess are undefined.

Errors 26 through 29 occur
during the solving process.
Examine a graph of the
function or a graph of the
variable vs. 

 in the

SOLVER

. If the equation has

a solution, change bounds
and

à

or the initial guess.