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Registering and Using Defining
Equations for f(x) and g(x)
Registering and Using Defining
Equations for f(x) and g(x)
Your calculator includes "f(" and "g(" functions that you can use after
registering defining equations for them. For example, after registering f(x)
= x
2
+ 1 as a defining equation for the "f(" function, you can calculate f(0) =
1 and f(5) = 26.
Pressing
displays a menu for registering the defining equation of f(x) or
g(x), and for inputting "f(" or "g(".
Note
•
The defining equations of f(x) and g(x) are also used by f(x) and g(x) in the Table app.
For information about the Table app, see "Creating a Number Table" (page 95).
Registering a Defining Equation
Example 1: To register f(x) = x
2
+ 1
1. Press
, select the Calculate app icon, and then press .
2. Press , and then select [Define f(x)].
•
This displays the f(x) equation registration screen.
3. Input x
2
+ 1.
1
4. Press .
•
This registers the expression you input, and the screen that was
shown before you pressed in step 2 of this procedure re-appears.
Note
• A defining equation can be registered from any calculator app except Distribution,
Equation (Simul Equation / Polynomial), Inequality, Base-N, Ratio and Math Box.
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