Texas Instruments TI-89 Titanium User Manual

Data/Matrix Editor 515
• Press A or B to remove the highlighting. Then edit the old expression.
Note: To cancel any changes, press N before pressing ¸.
Note: The seq function is described in the Technical Reference module. If you refer
to an empty column, you will get an error message unless
Auto-calculate = OFF.
Note: For a data variable, header definitions are saved when you leave the Data/ Matrix
Editor. For a list variable, the definitions are not saved (only their resulting cell values).
You can use an expression that: For example:
Generates a series of numbers. c1=seq(x^2,x,1,5)
c1={1,2,3,4,5}
Refers to another column.
c2=2
ùc1
c4=c1
ùc2–sin(c3)
3. Press ¸, D, or C to save the
definition and update the columns.
Ê
c1=seq(x,x,1,7); Ë c2=2ùc1; Ì You cannot directly change a locked
cell (
Œ) since it is defined by the column header.
ÊË
Ì

Texas Instruments TI-89 Titanium Specifications

General

Display Type	LCD
Display Resolution	160 x 100 pixels
CPU	Motorola 68000
CPU Speed	16 MHz
RAM	256 KB
Flash ROM	2.7 MB
Programming Language	TI-BASIC, Assembly
Power Source	4 AAA batteries
Connectivity	I/O port
Dimensions	7.5 x 3.5 x 1 inches