User Manual
20060301
Tip
•  You can include up to 99 arguments in a function. 
•  If you do not specify a folder, the function is stored in the current folder. 
•  A function defined using the 
Define command can contain only a single expression. You cannot 
link multiple expressions or commands using colons (:) or carriage returns. 
Executing a User-defined Function 
The following is the syntax for executing a user-defined function. 
<function name> ([<argument>[,<argument>...]]) 
The following shows an example of how to perform a manual calculation in the Main 
application. 
Example:  The following is a function created under “Creating a New User-defined Function” 
on page 12-5-1. 
 f4 (
x
) = 
x 
s
x 
+ 1
s
(
x
 – 2) 
12-5-3
User-defined Functions
Tip
•  You can use the following steps to recall user-defined functions stored in the “library” folder using 
the catalog (cat) keyboard. For more information about the “library” folder, see “1-7 Variables and 
Folders”.
1. Press 
.
.
2. Tap  the 
 (catalog) tab. 
3. On the catalog (cat) keyboard, tap the [Form] down arrow button, and then select [USER]. 
4. Scroll the list of functions until the function you want is visible, and then tap the function name 
you want. 
5. Tap  [INPUT].










