Texas Instruments TITANIUM TI-89 - Manual (Page 292)

Constants and Measurement Units 292
Notes:
• User-defined units are displayed in lowercase characters, regardless of the case you
use to define them.
• User-defined units such as _dm are stored as variables. You can delete them the
same as you would any variable.
For example, to define a dekameter unit:
10_m
!
_dm
To define an acceleration unit:
_m/_s^2
!
_ms2
To calculate 195 blinks in 5 minutes as
_blinks/_min:
195_blinks/(5_min)
definition
!
_newUnit
For
!
, press
9
Assuming unit
defaults for Length
and Time are set to
_m and _s.
Assuming unit
default for Time is
set to _s.