Texas Instruments PLUS TI-89 - Manual (Page 119)

102 Chapter 5: Additional Home Screen Topics
05ADDLHM DOC TI-89/TI-92 Plus: Additional Home Screen Topics (English) Susan Gullord Revised: 02/23/01 10:55 AM Printed: 02/23/01 2:13 PM Page 102 of
You can access a user-defined variable or function that is not in the
current folder. Specify the complete pathname instead of only the
variable name.
A pathname has the form:
folderName \ variableName
— or —
folderName \ functionName
For example:
If Current Folder = MAIN Folders
To see a list of existing folders and variables, press 2 °. On
the
VAR-LINK screen, you can highlight a variable and press ¸ to
paste that variable name to the Home screen’s entry line. If you paste
a variable name that is not in the current folder, the pathname
(
folderName\variableName ) is pasted.
Before deleting a folder, you must delete all the variables stored in
that folder.
¦ To delete a variable, enter the DelVar command.
DelVar var1 [, var2] [, var3] ...
¦ To delete an empty folder, enter the DelFold command.
DelFold folder1 [, folder2] [, folder3] ...
VAR-LINK lets you delete a folder and its variables at the same time.
Refer to Chapter 21.
1. Press 2 °.
2. Select the item(s) to delete and press ƒ 1 or 0. (If you use †
to select a folder, its variables are selected automatically.)
3. Press ¸ to confirm the deletion.
Using Variables in
Different Folders
Note: This example
assumes that you have
already created a folder
named MATH.
Note: For information about
the VAR-LINK screen, refer
to Chapter 21.
Deleting a Folder
from the Home
Screen
Note: You cannot delete the
MAIN
folder.
Deleting a Folder
from the
VAR-LINK
Screen
MAIN
a=1
f(x)=x
3 +x 2 +x
MATH
a=42
f(x)=3x
2 +4x+25