Texas Instruments TI-89 Manuel D’Utilisation
Polar Graphing
346
During a trace, you can also evaluate
r(
q
)
by typing the q value and pressing ¸.
Note:
You can use QuickCenter at any time during a trace, even if the cursor is still on
the screen.
…
Trace
Lets you move the cursor along a graph one
q
step
at a
time.
•
When you begin a trace, the cursor is on the first selected
equation at
equation at
q
min
.
•
QuickCenter applies to all directions. If you move the
cursor off the screen (top or bottom, left or right), press
cursor off the screen (top or bottom, left or right), press
¸
to center the viewing window on the cursor
location.
•
Automatic panning is not available. If you move the cursor
off the left or right side of the screen, the TI-89 Titanium /
Voyage™ 200 Graphing Calculator will not automatically
pan the viewing window. However, you can use
QuickCenter.
off the left or right side of the screen, the TI-89 Titanium /
Voyage™ 200 Graphing Calculator will not automatically
pan the viewing window. However, you can use
QuickCenter.
‡
Math
Only 1:Value, 6:Derivatives, 9:Distance, A:Tangent, and
B:Arc are available for polar graphs. These tools are
based on
B:Arc are available for polar graphs. These tools are
based on
q
values. For example:
•
1:Value
displays an
r
value (or x and y, depending on the
graph format) for a specified
q
value.
•
6:Derivatives
finds
dy/dx
or
dr/d
q
at a point defined for
a specified
q
value.
Tool
For Polar Graphs: