Texas Instruments TI-89 Manuel D’Utilisation

Operating the Calculator

 188

Exponential 
Format

Notation used to display results: NORMAL, SCIENTIFIC, 
or ENGINEERING. 

Complex 
Format

Format used to display complex results, if any: 
REAL (complex results are not displayed unless you use 
a complex entry), RECTANGULAR, or POLAR.

Vector Format

Format used to display 2- and 3-element vectors: 
RECTANGULAR, CYLINDRICAL, or SPHERICAL.

Pretty Print

Turns the pretty print display feature OFF or ON. 

Split Screen

Splits the screen into two parts and specifies how the 
parts are arranged: FULL (no split screen), 
TOP-BOTTOM, or LEFT-RIGHT. Refer to the Split 
Screens module.

Split 1 App

Application in the top or left side of a split screen. If you 
are not using a split screen, this is the current application.

Split 2 App

Application in the bottom or right side of a split screen. 
This is active only for a split screen.

Number of 
Graphs

For a split screen, lets you set up both sides of the screen 
to display independent sets of graphs.

Graph 2

If Number of Graphs = 2, selects the type of graph in the 
Split 2 part of the screen. Refer to Calculator Home 
Screen.

Exact/Approx

Calculates expressions and displays results in numeric 
form or in rational/symbolic form: AUTO, EXACT, or 
APPROXIMATE. 

Base

Lets you perform calculations by entering numbers in 
decimal (DEC), hexadecimal (HEX), or binary (BIN) form.