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120
Chapter 8: Polar Graphing
QuickZoom is available in
Pol
graphing; panning is not
(Chapter 6).
Tracing a Polar Equation
To begin a trace, select
TRACE
appears on the first selected equation at
In
format, moving the trace cursor updates the values of
RectGC
format is selected,
q
In
format, moving the trace cursor updates
PolarGC
selected,
and
are displayed.
q
r
To move the trace cursor...
Along the graph of the equation by increments or decrements of
From one equation to another
If you move the trace cursor beyond the top or bottom of the graph screen, the coordinate
values at the bottom of the screen continue to change appropriately.
If you have graphed a family of curves, # and $ move through each curve before moving
to the next polar equation.
menu (press 6 )). The trace cursor
from the
GRAPH
.
qMin
,
, and
are displayed.
x
y
,
, and
; if
q
x
y
,
,
, and
; if
format is
q
x
y
r
CoordOn
Press:
" or !
qStep
# or $
CoordOn
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