Texas Instruments TI-89 Manuel D’Utilisation

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4. Change the screen’s view to show only 

function variables.

Although this may not seem particularly 
useful in an example with four variables, 
consider how useful it could be if there 
were many variables of all different types.

Press 

„ D D B 5 ¸

5. Highlight the 

 function variable, and view 

its contents.

Notice that the function was assigned 
using 

 but is listed as 

 on the screen. 

Press 

D 2 ˆ

6. Close the Contents window.

Press 

N

7. With the 

 variable still highlighted, close 

 to paste the contents of the 

variable to the entry line. Notice that “(” is 
pasted.

Press 

¸

8. Complete the operation.

Press 2 

d ¸

5

…

f(

5

…

f(2)