Casio ClassPad 101 User's Guide download pdf (Page 26)

Chapter 1: Basics 26

Main Memory Data Types

Data stored in main memory has a data type attribute that is assigned in accordance with the application that

created the data and the actual content of the data. The data type is indicated by a data type name. Data type

names are shown on the Variable Manager variable list, and on the Select Data dialog box that appears when

you are specifying a variable in any ClassPad application. The following table lists all of the data type names

and explains the meaning of each.

Data Type Name Data Type

EXPR Real number, complex number or expression data

STR String data

LIST List data created using the Statistics application, Main application, etc.

MAT Matrix data created using the Main application, etc.

PRGM* General program

EXE* Edit prohibited program

TEXT* Text data

FUNC* User-defined function

GMEM* Graph memory data saved using the Graph & Table application

For more information, see “Saving Graph Editor Data to Graph Memory” (page 100).

GEO* Geometry application data

MEM* Data saved to a file using one of the following applications: Spreadsheet, Geometry,

Verify (page 92), Probability (page 92).

OTHR Data other than that described above

Protected variable types

Some data types are protected. A variable whose data type is protected cannot be overwritten with another

variable, which protects variable contents from being inadvertently altered. Data types whose names are

marked with an asterisk in the above table are protected. Note that whether or not a data type is protected is

determined by the system. You cannot change the protection status of a data type.

Tip: Even when a variable is a protected data type, you can rename, delete, or move it. To disable these operations, you

need to lock the variable. See “Variable Manager operations” on page 27.

Main Memory Folders

Your ClassPad stores data in one of the following types of folders described below.

“main” folder: The “main” folder is a ClassPad reserved folder, and acts as the default current folder (see

“Current Folder” below).

“library” folder: Also a ClassPad reserved folder, the “library” folder can be used for storing user-created data

(variables, programs, user functions, etc.). Data stored in the “library” folder can be accessed without specifying

a path, regardless of the current folder setting.

User folder: This is a folder created and named by you. You can make a user folder the current folder, move

data 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 main memory at one time.

Tip: You cannot put a folder inside of another folder.

Current Folder

The current folder is the folder where the data (excluding eActivity files) created by applications are stored

and from which such data can be accessed. The initial default current folder is the “main” folder. You can also

select a user folder you created as the current folder. For more information about how to do this, see “Variable

Manager operations” on page 27.

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Casio ClassPad 101 User's Guide Page 26

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