Graph mode

The app opens in graph

 

mode. In graph mode,

 

you manipulate a copy of

 

the graph by pressing the

 

cursor keys. All four keys

 

are available. The

 

original

 

graph—converted to

 

dotted lines—remains in place for you to easily see the

 

result of your manipulations.

When is chosen, the cursor keys simply translate the graph horizontally and vertically. When is chosen, pressing =or

\changes the amplitude of the graph

(that is, it is stretched or shrunk vertically); and pressing <or >changes the frequency of the graph (that is, it is stretched or shrunk horizontally).

 

The

or

button at the far right of the menu

 

determines the increment by which the graph moves with

 

each press of a cursor key. By default, the increment is set

 

at π ⁄ 9

or 20°.

 

Equation mode

Tap

to switch to

equation mode. In equation mode, you use the cursor keys to move between parameters in the equation and change their values. You can then observe the effect on the

graph displayed. Press \or =to decrease or increase the value of the selected parameter. Press >or <to select another parameter.

You can switch back to graph mode by tapping .

The Explorer apps

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Image 311
HP Prime Graphing NW280AAABA Graph by pressing, Cursor keys. All four keys, Are available, Result of your manipulations