4-18 Function Graphing
The Zoom factors, XFACT and YFACT, determine the extent of the change for the
viewing window created by ZOOM IN or ZOOM OUT on a graph.
Zoom factors are positive numbers (not necessarily integers)
greater than or equal to 1. They define the magnification or
reduction factor used to ZOOM IN or ZOOM OUT around a
point.
To review the current values of the Zoom factors (XFACT and
YFACT):
1. Press L, and then press 1 to select WINDOW....
2. Press 9 to select XFACT or 0 to select YFACT. XFACT or
YFACT is copied to the cursor location.
3. Press ¸. The Zoom factor is displayed.
To set the Zoom factors XFACT and YFACT from the Home
screen or a program, begin on a blank line.
1. Enter the factor, and then press §.
2. Press L, and then press 1 to select WINDOW....
3. Press 9 to select XFACT or 0 to select YFACT. XFACT or
YFACT is copied to the cursor location on the Home
screen.
4. Press ¸ to store the Zoom factor to the variable.
Setting the Zoom Factors
Zoom Factors
Checking Zoom
Factors
Setting Zoom
Factors from the
Home Screen or
a Program