Texas Instruments TI-83 Plus User Manual page 17

CONIC ZOOM
The
CONIC ZOOM
window of the graph quickly. This screen is similar to the
calculator's zoom settings screen. Zoom settings that do not
apply to conic sections are not displayed.
Zoom Conic
Graphing. It changes the viewing window so that you can see the
important characteristics of the conic section, regardless of the
conic section's position on the graph. The following table
describes how Conic Graphing changes the calculator default
variables, based on the zoom setting you choose.
Note
TI-83 Plus Conic Graphing
settings screen allows you to adjust the viewing
is a new zoom setting that applies only to Conic
You can only access the CONIC ZOOM screen after you have
selected an equation to graph.
You can only access the CONIC ZOOM screen if the mode is
set to MAN.
Page 17