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Tap to enter test view. In test view you can test your skill at matching an equation to the graph shown. Test view is like
equation mode in that you use the cursor keys to select and change the value of each parameter in the equation. The goal is to try
to match the graph that is shown. The functionality of test view in the Trig Explorer is almost identical to that of test view in the
Quadratic Explorer (see
page 49).
6 Creating Customized Apps
The apps that come with the HP Prime are built in and cannot be deleted. They are always available (simply by pressing I).
However, you can create any number of customized instances of an app. You can also create an instance of an app that is based
on a previously customized app. Customized apps are opened from the application library in the same way that you open a built-
in app.
The advantage of creating a customized instance of an app is that you can continue to use the built-in app for some other
problem and return to the customized app at any time with all its data still in place.
Like built-in apps, customized apps can be sent to another HP Prime calculator. This is explained in “Data sharing” on page 15 .
Suppose you want to create a customized app that is based on the built-in Sequence app. The app will generate the Fibonacci
sequence.
tap
1. P r e s s I and use the cursor keys to highlight the Sequence app. Don’t open the app.
2. Tap . This enables you to create a copy of the built-in app and save it under a new name. Any data already in the built-
in app is retained, and you can return to it later by opening the Sequence app.
3. In the Name field, enter a name for your new app—say, Fibonacci—and press
E twice.
Your new app is added to the application library. Note that it has the same icon as the source app—Sequence—but with the
name you gave it: Fibonacci in this example. You are now ready to use this app just as you would the built-in Sequence app.