Texas Instruments TI-89 Manuel D’Utilisation
Polar Graphing
345
ƒ
9
– or –
8 Í
to set
Coordinates = POLAR
. If
Coordinates = RECT
, the polar equations will be graphed
properly, but coordinates will be displayed as x and y.
When you trace a polar equation, the q coordinate is shown even if
Coordinates = RECT
.
Exploring a Graph
Exploring a Graph
Exploring a Graph
Exploring a Graph
As in function graphing, you can explore a graph by using the following tools. Any
displayed coordinates are shown in polar or rectangular form as set in the graph format.
displayed coordinates are shown in polar or rectangular form as set in the graph format.
Tool
For Polar Graphs:
Free-Moving
Cursor
Cursor
Works just as it does for function graphs.
„
Zoom
Works just as it does for function graphs.
•
Only
x
(
xmin
,
xmax
,
xscl
) and
y
(
ymin
,
ymax
,
yscl
)
Window variables are affected.
•
The
q
Window variables (
q
min
,
q
max
,
q
step
) are not
affected unless you select
6:ZoomStd
(which sets
q
min = 0
,
q
max = 2
p
, and
q
step =
p
/24
).