HP Prime Graphing Wireless Calculator Instrukcja Użytkownika Strona 122

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From CAS functions
Some of the functions on the CAS menu can be incorporated into a denition. The CAS menu is one of
the Toolbox menus ( ). The following denition incorporates the CAS function irem: F5(X) = X
2
+
CAS.irem(45,7). (irem is entered by selecting
Remainder, an option on the Division menu, which is a
sub-menu of the
Integer menu. Note that any CAS command or function selected to operate outside the
CAS is given the CAS. prex.)
From app functions
Some of the functions on the App menu can be incorporated into a denition. The App menu is one of
the Toolbox menus ( ). The following denition incorporates the app function PredY:
F9(X) = X
2
+ Statistics_2Var.PredY(6).
From the Catlg menu
Some of the functions on the Catlg menu can be incorporated into a denition. The Catlg menu is one of
the Toolbox menus ( ). The following denition incorporates a command from that menu and an
app variable: F6(X) = X
2
+ INT(Root). The integer value of the last root calculated in the Function app is
substituted for INT(Root) when this
denition is evaluated.
From other denitions
For example, you can dene F3(X) as F1(X) * F2(X).
Evaluating a dependent denition
If you have a dependent denition—that is, one dened in terms of another denition—you can combine all
the denitions into one by evaluating the dependent denition.
1. Select the dependent expression.
2.
Tap .
Consider the following example. Notice that F3(X) is dened in terms of two other functions. It is a dependent
denition and can be evaluated. If you highlight F3(X) and tap , F3(X) becomes 2 * X
2
+ X+ 2 * (X
2
1).
74 Chapter 6 Introduction to HP apps
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