HP 39gs - Manual (Page 49)

Aplets and their views 2-9
To jump directly to
a value To jump straight to a value rather than using the Trace
function, use the
menu key. Press , then enter
a value. Press to jump to the value.
To turn trace on/off If the menu labels are not displayed, press first.
• Turn off trace mode by pressing .
• Turn on trace mode by pressing .
• To turn the coordinate display off, press .
Zoom within a
graph
One of the menu key options is . Zooming redraws
the plot on a larger or smaller scale. It is a shortcut for
changing the Plot Setup.
The Set Factors... option enables you to set the
factors by which you zoom in or zoom out, and whether
the zoom is centered about the cursor.
ZOOM options Press , select an option, and press . (If
is not displayed, press .) Not all options are
available in all aplets.
Option Meaning
Center Re-centers the plot around the
current position of the cursor without
changing the scale.
Box... Lets you draw a box to zoom in on.
See “Other views for scaling and
splitting the graph” on page 2-13.
In Divides horizontal and vertical
scales by the X-factor and Y-factor.
For instance, if zoom factors are 4,
then zooming in results in 1/4 as
many units depicted per pixel. (see
Set Factors...)
Out Multiplies horizontal and vertical
scales by the X-factor and Y-factor
(see
Set Factors...).
X-Zoom In Divides horizontal scale only, using
X-factor.
X-Zoom Out Multiplies horizontal scale, using
X-factor.
HP 39gs English.book Page 9 Wednesday, December 7, 2005 11:24 PM