
In the following gure, the value of Xmin from the Function app was retrieved rst (–10.4…). The qualied
variable name entered second retrieved the value of Xmin from the Sequence app (–1.8).
Note the syntax required: app_name.variable_name.
The app can be any of the 18 HP apps, or one you have created based on a built-in app. The name of the app
variable must match a name listed in the app variables tables below. Spaces are not allowed in an app name
and must be represented by the underscore character: .
TIP: Non-standard characters in variables name—such as Σ and σ—can be entered by selecting them from
the special symbols palette ( ) or from the characters menu ( ).
Home variables
The Home variables are accessed by pressing and tapping .
Category Names
Real A to Z and θ
For example, 7.45 A
Complex Z0 to Z9
For example, 2+3×i Z1 or(2,3) Z1 (depending on your Complex number
settings)
List L0 to L9
For example, {1,2,3} L1.
Matrix M0 to M9
Store matrices and vectors in these variables.
For example, [[1,2],[3,4]] M1.
Graphics G0 to G9
Home variables 473
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