Exploring A Parametric Graph - TI -82 Manual Book

Exploring a Parametric Graph

As in Function graphing, three tools are available for exploring a graph: using the
free-moving cursor, tracing an equation, and zooming.
Free-Moving Cursor
The free-moving cursor works in
graphing. In
FORMAT is
q
and are updated, and
TRACE
TRACE lets you move the cursor along the equation one
When you begin a trace, the cursor is on the first selected equation at
The number of the equation shows in the upper right of the display.
In RectGC FORMAT
the values of
updated, and
calculated from
If the cursor moves off the top or bottom of the screen, the coordinate
values at the bottom of the screen continue to change appropriately.
y | and y ~ move the
TRACE cursor remains in the same location if you leave
if Smart Graph has not caused the graph to be replotted.
QuickZoom is available in
ZOOM
operations work in
ZOOM
the (
X Xmin
variables are affected.
not affected, except when you select
= p à24).
Tstep
ZTmax , and
CALC
operations work in
CALC
operations available in
4-6 Parametric Graphing
RectGC FORMAT
CoordOn ) the values of
q
R and
, TRACE updates and displays (if
X , Y , and T . (In PolarGC FORMAT
q
R , , and T are displayed.) The
T .
TRACE
Par
Par
, , and ) and
Xmax Xscl
T WINDOW
ZOOM MEMORY
ZTstep .
Par
Par graphing are
Par graphing just as it does in
, moving the cursor updates and displays (if
X and Y . (In
are displayed.)
,
X and
cursor five plotted points at a time. The
graphing, but panning is not.
graphing as they do in
( ,
Y Ymin Ymax
variables ( Tmin
ZStandard
variables in Par
graphing as they do in
value , dy/dx
Func
PolarGC FORMAT
Tstep at a time.
FORMAT is CoordOn
q
X , Y , R , and T are
q
Y (or R and ) values are
TRACE and return,
graphing. Only
Func
, and )
Yscl WINDOW
, Tmax , and Tstep
( Tmin = 0, Tmax = 2p, and
graphing include
graphing.
Func
, dy/dt , and dx/dt
, X , Y , R ,
Tmin .
)
) are
ZTmin ,
CALC
.