Selecting And Deselecting Parametric Equations; Setting Window Variables - Texas Instruments TI-83 Manual Book

Selecting and Deselecting Parametric Equations

The TI-83 Plus
editor, a parametric equation is selected when the
and components are highlighted. You may select any or all of the
X Y
equations
X
1T
To change the selection status, move the cursor onto the = sign of either
component and press Í. The status of both the
the or
X Y
components is changed.

Setting Window Variables

To display the window variable values, press p. These variables
define the viewing window. The values below are defaults for
graphing in
Radian
Tmin=0
Tmax=6.2831853...
Tstep=.1308996...
Xmin=L10
Xmax=10
Xscl=1
Ymin=L10
Ymax=10
Yscl=1
Note: To ensure that sufficient points are plotted, you may want to change the
window variables.
TI-83 Plus Parametric Graphing
graphs only the selected parametric equations. In the
and through
Y
1T
angle mode.
Smallest T value to evaluate
Largest T value to evaluate (2p)
T value increment (pà24)
Smallest X value to be displayed
Largest X value to be displayed
Spacing between the X tick marks
Smallest Y value to be displayed
Largest Y value to be displayed
Spacing between the Y tick marks
and .
X Y
6T 6T
signs of both the
=
and
X
Par
Y=
Y
T
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