Texas Instruments TI-89, TI-92

Appendix A: Functions and Instructions 455

8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 455 of 132

Goto CATALOG

Goto labelName

Transfers program control to the label

labelName.

labelName must be defined in the same

program using a Lbl instruction.

Program segment:

:0!temp

TOP

: temp+i!temp

: If i<

0 T

: i+

: Goto TOP

: En

:Disp temp

Graph CATALOG

Graph expression1[, expression2] [, var1] [, var2]

The Smart Graph feature graphs the requested

expressions/ functions using the current

graphing mode.

Expressions entered using the Graph or Table

commands are assigned increasing function

numbers starting with 1. They can be

modified or individually deleted using the

edit functions available when the table is

displayed by pressing †Header. The

currently selected Y= functions are ignored.

If you omit an optional var argument, Graph

uses the independent variable of the current

graphing mode.

Note: Not all optional arguments are valid in

all modes because you can never have all

four arguments at the same time.

In function graphing mode and ZoomStd

window:

Graph 1.25aùcos(a),a ¸

In parametric graphing mode and ZoomStd

window:

Graph time,2cos(time)/time,time

Some valid variations of this instruction are:

Function graphing Graph expr, x

Parametric graphing Graph xExpr, yExpr, t

Polar graphing Graph expr, q

Sequence graphing Not allowed.

3D graphing Graph expr, x, y

Diff Equations graphing Not allowed.

Note: Use ClrGraph to clear these functions,

or go to the Y= Editor to re-enable the system

Y= functions.

In 3D graphing mode:

Graph (v^2 ìw^2)/4,v,w ¸