HP 39g+ - Manual (Page 73)

Parametric aplet 4-1
4
Parametric aplet
About the Parametric aplet
The Parametric aplet allows you to explore parametric
equations. These are equations in which both x and y are
defined as functions of t. They take the forms
and
.
Getting started with the Parametric aplet
The following example uses the parametric equations
Note: This example will produce a circle. For this example to
work, the angle measure must be set to degrees.
Open the
Parametric
aplet
1. Open the Parametric aplet.
>$3/(7@ Select
Parametric
TU6SU•
Define the
expressions
2. Enter each equation.
3 >;@>6,1@>;75@> @
>(17(5@
3
>;@>&26@>;75@> @
>(17(5@
x f t
( )
=
y g t
( )
=
x t
( )
3 t
y t
( )
3 t cos =
sin =