HP 39gs Graphing manual About the Parametric aplet, Getting started with the Parametric aplet

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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 x = f(t) and y = g(t) .

Getting started with the Parametric aplet

Open the Parametric aplet

Define the expressions

The following example uses the parametric equations

x(t) = 3 sin t y(t) = 3 cos t

Note: This example will produce a circle. For this example to work, the angle measure must be set to degrees.

1. Open the Parametric aplet.

Select

Parametric

2. Define the expressions.

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Parametric aplet 4-1