HP Prime Graphing NW280AAABA manual 274

Explore the graph

The menu button gives you access to common tools for exploring plots:

: displays a range of zoom options. (The + and wkeys can also be used to zoom in and out.)

: when active, enables a tracing cursor to be moved along the contour of the plot (with the coordinates of the cursor displayed at the bottom of the screen).

: specify a T value and the cursor moves to the corresponding x and y coordinates.

: display the functions responsible for the plot.

Detailed information about these tools is provided in “Common operations in Plot view” on page 88.

Typically you would modify a plot by changing its definition in Symbolic view. However, you can modify some plots by changing the Plot Setup parameters. For example, you can plot a triangle instead of a circle simply by changing two plot setup parameters. The definitions in Symbolic view remain unchanged. Here is how it is done:

10.Press SP(Setup).

11.Change T Step to 120.

12.Tap .

13.From the Method menu, select Fixed-Step Segments.

14.Press P.

A triangle is displayed instead of a circle. This is because the new value of T Step makes the points being plotted 120° apart instead of the

nearly continuous 5°. And by selecting Fixed-Step Segments the points 120° apart are connected with line segments.

274 Parametric app