Texas Instruments TI-89 사용자 설명서

Symbolic Manipulation

 239

Temporarily Overriding a Variable

Temporarily Overriding a Variable

Temporarily Overriding a Variable

Temporarily Overriding a Variable

By using the 

 operator ( | ), you can:

 For more information about the | operator, refer to Typing the “With” Operator.

To type the 

 operator ( | ), press:

@

Í

All one-letter variables (a – z) in the 
current folder.

 For information about folders, 

refer to the Calculator Home Screen 
module.

From the Home screen 
Clean Up menu, select 

. You will be 

prompted to press 

¸ to 

confirm the deletion.

•

Temporarily override a variable’s defined 
value.

•

Temporarily define a value for an 
undefined variable.