Select an aplet, Define an expression (symbolic view), Select an aplet -2 – HP 38g Graphing Calculator User Manual

Page 66: Define an expression (symbolic view) -2

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Select an Aplet

Select the aplet appropriate to your problem : Open the

Library

lib

|),

highlight the name of an aplet, and press

{{START}} (or IENTE

® Function

. This aplet can define rectangular equations of

the form

y = f(x) .

• Parametric

. This aplet can define parametric expressions,

which define equations over time,

They take the forms

jf = /'(

andy = g(

® Polar

, This aplet can define polar expressions, which

graph equations in terms of an angle

• Sequence

. This aplet can define sequence functions,

which are defined in terms of

or in terms of the previous

terms in the sequence. Sequence plotting produces either

stairstep

graphs (n .i/J or

cobweb

graphs (f/

,U^.

® Other aplets

. You can load or create other aplets besides

those that are built in. Those you create yourself will be

based on an existing aplet, filled with data and then

named (if you like).

Define an Expression (Symbolic View)

The Symbolic view is the

defining view

for Function,

Parametric, Polar, and Sequence aplets. The other views are

derived from the symbolic expression.

You can define up to ten different functions for each

Function, Parametric, Polar, and Sequence aplets. You can

graph any number of functions (in the same aplet)

simultaneously by checkmarking them.

3-2 Plotting and Exploring Functions