Appendix a: function and instruction reference – Texas Instruments TI-73 EXPLORER User Manual

Page 316

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310

Appendix A: Function and Instruction Reference

73A-ENG.DOC AppxA: Function/Instruction Reference, English Julie Hewlett Revised: 07/29/98 1:10 PM Printed:

05/19/99 9:03 AM Page 310 of 36

ZBox

(

Z O O M

Displays a graph, lets you (interactively) draw a box

that defines a new viewing

WINDOW

, and then updates

the

WINDOW

.

Define Y



=Xsin(X).

Set the following WINDOW

values:

Xmin=M1000, Ymin=M1000,

Xmax=1000, Ymax=1000,

Xscl=90, Yscl=90

Graph Y



.

Select ZBox.

ZDecimal

(

Z O O M

Adjusts the viewing

WINDOW

so that

@

X=0.1

and

@

Y=0.1

, and displays the graph screen with the origin

centered on the screen.

Define Y



=X, graph using

ZStandard, and trace the graph

Select ZDecimal and trace the

graph.

Move the cursor, and press

b

to select upper left and bottom

right corners of the box.

Selected portion (the box) is

automatically displayed.

X and Y values now

increment by .1.

X and Y values

increment by .212466.

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