1-7-1

Variables and Folders

1-7 Variables and Folders

Your ClassPad lets you register text strings as variables. You can then use a variable to store a value, expression, string, list, matrix, etc. A variable can be recalled by a calculation to access its contents.

Variables are stored in folders. In addition to the default folders that are provided automatically, you can also create your own user folders. You can create user folders as required to group variables by type or any other criteria.

Folder Types

Your ClassPad stores variables in one of four types of folders described below.

Folder Type

Description

“system” Folder

This is one of the ClassPad’s reserved folders, which is provided by

 

default. It is used for storage of system variables, which are pre-

 

defined variables used by ClassPad applications and other system

 

operations.

 

Some examples of system variables are “list1” through “list6”, View

 

Window parameters “xmin” and “xmax”, etc. A system variable can be

 

accessed by any application simply by specifying the applicable

 

variable name.

 

 

“library” Folder

Also a ClassPad reserved folder, the “library” folder can be used for

 

storing user-created variables. Variables stored in the “library” folder

 

can be accessed without specifying a path, regardless of the current

 

folder setting (see next page).

 

 

“main” Folder

The “main” folder is also a ClassPad reserved folder, and acts as the

 

default current folder. While the “main” folder is the current folder, all

 

variables created by ClassPad application operations are stored here

 

when you do not specify a path for variable storage.

 

 

User Folder

This is a folder created and named by you. You can make a user

 

folder the current folder, move variables to a user folder, etc. You can

 

also delete and rename a user folder as required. You can have up to

 

87 user folders in ClassPad memory at one time.

 

 

Tip

•You cannot put a folder inside of another folder.

•You can view the contents of a folder, other than “system”, using the Variable Manager (page 1-8-1). Note, however, that you cannot open the “system” folder for viewing.

•The “system” folder contents are listed within the ( page of the keyboard when “Sys” is selected for “Form”.

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