Aplets are stored in the Aplet library. See “Aplet library” on page 1-15 for further information.

You can modify configuration

settings for the graphical, tabular, and symbolic views of the aplets in the following table. See “Aplet view configuration” on page 1-17 for further information.

Aplet

Use this aplet to explore:

 

name

 

 

 

 

Function

Real-valued, rectangular functions y in

 

terms of x. Example: y = 2x2 + 3x + 5 .

Inference

Confidence intervals and Hypothesis tests

 

based on the Normal and Students-t

 

distributions.

 

Parametric

Parametric relations x and y in terms of t.

 

Example: x = cos(t) and y = sin(t).

Polar

Polar functions r in terms of an angle θ.

 

Example: r = 2 cos (4θ) .

 

Sequence

Sequence functions U in terms of n, or in

 

terms of previous terms in the same or

 

another sequence, such as Un –

1 and

 

Un – 2 . Example: U1 = 0 , U2

= 1 and

 

Un = Un – 2 + Un – 1 .

 

Solve

Equations in one or more real-valued

 

variables. Example: x + 1 = x2 – x – 2 .

Statistics

One-variable (x) or two-variable (x and y)

 

statistical data.

 

 

 

 

In addition to these aplets, which can be used in a variety of applications, the HP 39G/40G is supplied with two teaching aplets: Quad Explorer and Trig Explorer. You cannot modify configuration settings for these aplets.

A great many more teaching aplets can be found at HP’s web site and other web sites created by educators, together with accompanying documentation, often with student work sheets. These can be downloaded free of charge and transferred to the HP 39G/40G using the separately supplied Connectivity Kit.

1-12

Getting started