TI-83 Plus Function Graphing 145
ZoomRcl
ZoomRcl graphs the selected functions in a user-defined viewing window.
The user-defined viewing window is determined by the values stored
with the ZoomSto instruction. The window variables are updated with the
user-defined values, and the graph is plotted.
ZOOM FACTORS
The zoom factors, XFact and YFact, 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.
Checking XFact and YFact
To display the ZOOM FACTORS screen, where you can review the current
values for XFact and YFact, select 4:SetFactors from the ZOOM MEMORY
menu. The values shown are the defaults.