Controlling What Appears on a Graph Screen
kZoomDescription
This function lets you enlarge and reduce the graph on the screen.
Set Up
1. Draw the graph.
Execution
2. Specify the zoom type.
!2(ZOOM)1(BOX) ... Box zoom
Draw a box around a display area, and that area is enlarged to fill the entire screen.
2(FACT)
3(IN)/4(OUT) ... Factor zoom
The graph is enlarged or reduced in accordance with the factor you specify, centered on the current pointer location.
5(AUTO) ... Auto zoom
6(g)1(ORIG) ... Original size
Returns the graph to its original size following a zoom opera- tion.
6(g)2(SQR) ... Graph correction
6(g)3(RND) ... Coordinate rounding
Rounds the coordinate values at the current pointer location.
6(g)4(INTG) ... Integer
Each dot is given a width of 1, which makes coordinate values integers.
6(g)5(PRE) ... Previous
Box zoom range specification
3.Use the cursor keys to move the pointer () in the center of the screen to the location where you want one corner of the box to be, and then press w.
4.Use the cursor keys to move the pointer. This causes a box to appear on the screen. Move the cursor until the area you want to enlarge is enclosed in the box, and then press w to enlarge it.
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