User Manual

Chapter 3: Function Graphing 81

Note: You can adjust all window variables from the VARS menu by pressing  1:Window and

then selecting the variable from the

X/Y, T/q, or U/V/W menu.

Zoom Cursor

When you select

1:ZBox, 2:Zoom In, or 3:Zoom Out, the cursor on the graph becomes the zoom

cursor (

+), a smaller version of the free-moving cursor (+).

ZBox

To define a new viewing window using

ZBox, follow these steps.

1. Select 1:ZBox from the ZOOM menu. The zoom cursor is displayed at the center of the screen.

2. Move the zoom cursor to any spot you want to define as a corner of the box, and then press

Í. When you move the cursor away from the first defined corner, a small, square dot

indicates the spot.

3. Press |, }, ~, or †. As you move the cursor, the sides of the box lengthen or shorten

proportionately on the screen.

Note: To cancel ZBox before you press Í, press ‘.

4. When you have defined the box, press Í to replot the graph.

B: ZFrac1/2