HP Prime Graphing Calculator User Manual

Page 433

Variables

429

degrees by entering 1

HAngle

in Home

view. Entering 0

HAngle

forces the

setting to return to radians.

Retrieving variables

You can see what value has been assigned to a
variable—built-in or user-defined—by entering its name in
Home view and pressing

. You can enter the

name letter by letter, or choose the variable from the
Variables menu.
The Variables menu is
opened by tapping

There are four sub-
menus, covering Home,
CAS, app, and user
variables. Home
variables are the built-in
variables set by what you
do in Home view or by the settings you choose on the

Home Settings

screen. Some examples are HAngle

and Base. App variables are also built-in, but they are set
by what you do in an app. Some examples are XMax and
Slope. The CAS variables and user variables are those
you create yourself.
If you want to retrieve just the value of a variable and not
its name, tap

before you select the variable from a

Variables menu.

Qualifying

variables

Some variables are common to more than one app. For
example, the Function app has a variable named Xmin,
but so too does the Polar app, the Parametric app, the
Sequence app, and the Solve app. Likewise, the 

variable is common to both the Statistics 1Var and
Statistics 2Var apps. Although named identically, these
variables can hold different values.