HP Prime Graphing NW280AAABA manual Creating an app

To add a note to an app:

1.Open the app.

2.Press SI(Info).

If a note has already been created for this app, its contents are displayed.

3.Tap and start writing (or editing) your note.

The format and bullet options available are the same as those in the Note Editor (described in “The Note Editor” on page 490).

4.To exit the note screen, press any key. Your note is automatically saved.

Creating an app

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 most apps. 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. For example, you could create a customized version of the Sequence app that enables you to generate and explore the Fibonacci series. You could continue to use the built-in Sequence app to build and explore other sequences and return, as needed, to your special version of the Sequence app when you next want to explore the Fibonacci series. Or you could create a customized version of the Solve app—named, for example, Triangles—in which you set up, just once, the equations for solving common problems involving right-angled triangles (such as H=O/SIN(θ), A=H*COS(θ), O=A*TAN(θ), etc.). You could continue to use the Solve app to solve other types of problems but use your Triangle app to solve problems involving right-angled triangles. Just open Triangles, select which equation to use—you won’t need to re- enter them—enter the variables you know, and then solve for the unknown variable.

An introduction to HP apps 107