Texas Instruments TI-89 User Manual

Previews

Performing Computations

This section provides several examples for you to perform from the Calculator Home
screen that demonstrate some of the computational features of the TI-89 Titanium. The
history area in each screen was cleared by pressing

ƒ and selecting

8:Clear Home

before performing each example, to illustrate only the results of the example’s
keystrokes.

Showing Computations

Steps and keystrokes

Display

Compute

sin(

/4)

and display the result in

symbolic and numeric format. To clear the
history area of previous calculations, press

and select

8:Clear Home

Press

2 W 2 T e 4 d ¸ 8 ‘