Texas Instruments TI-89 Calculator User Manual


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35
status . . . . . . . . . . . . . . . . . . . . . . 36
tplot window variable
. . . . . . . . . . . . 417
Trace, trace
. . . 751, 761, 763, 766, 892
trace, Trace
321, 628, 751, 761, 763, 766
tracing
87, 321, 324, 346, 353, 362, 381,
420
transmitting. See linking and transmitting
transpose, T
. . . . . . . . . . . . . . . . . . . 886
Trig menu
. . . . . . . . . . . . . . . . . . . . . 257
trigonometric
collection, tCollect( )
. . . . . . . . . . 257
expansion, tExpand( )
. . . . . . . . 257
trigonometric collection, tCollect( )
. . 889
trigonometric expansion, tExpand( )
. 890
true message
. . . . . . . . . . . . . . . . . . 275
Try, try
. . . . . . . . . . . . . . . . . . . . . . . 892
try, Try
. . . . . . . . . . . . . . . . . . . . . . . 636
tstep window variable
. . . . . . . . 351, 416
turning clock off, ClockOff
. . . . . . . . . 793
turning clock on, ClockOn
. . . . . . . . . 793
turning off
. . . . . . . . . . . . . . . . . . . . . . . 7
after APD
. . . . . . . . . . . . . . . . . . . . 8
following inactivity
. . . . . . . . . . . . . 8
turning on
initial startup
. . . . . . . . . . . . . . . . . . 5
TwoVar, two-variable results
. . . . . . 546
two-variable results, TwoVar
. . 546, 893
typing
file name
. . . . . . . . . . . . . . . . . . . . 29
to scroll through Catalog
. . . . . . . 22
U
Unarchiv, unarchive variables . 597, 708,
709, . . . . . . . . . . . . . . . . . . . . . . . 893
unarchive variables, Unarchiv
. 597, 708,
709, . . . . . . . . . . . . . . . . . . . . . . . 893
undef (undefined) message
. . . . . . . . 278
underscore, _
. . . . . . . . . . . . . . . . . . 911
Unit ID (identifier)
. . . . . . . . . . . . . . . 234
Unit System mode
. . . . . . . . . . .189, 926
unit System mode
. . . . . . . . . . . . . . . . 18
unit vector, unitV( )
. . . . . . . . . . . . . . 893
units
converting
. . . . . . . . . . . . . . . . . . 283
defaults
. . . . . . . . . . . . . . . . 287, 293
displaying
. . . . . . . . . . . . . . . . . . 287
get/return, getUnits( )
. . . . . . . . . 829
measurement
. . . . . . . . . . . . . . . 279
modes
. . . . . . . . . . . . . . . . . 189, 926
setting, setUnits( )
. . . . . . . . 617, 874
user-defined
. . . . . . . . . . . . . . . . 290
unit-to-unit cable
. . . . . . . . . . . . . . . . . 70
connecting
. . . . . . . . . . . . . . . . . . . 68
unitV( ), unit vector
. . . . . . . . . . . . . . 893
Unlock, unlock
. . . . . . . . . . . . . . . . . . 893
unlock, Unlock
. . . . . . . . . . . . . . . . . . 597
upgrading operating system (OS)
. . 731,
732, . . . . . . . . . . . . . . . . . . . . . . . 733
user-defined functions
. . . 196, 223, 271,
378, . . . . . . .475, 477, 585, 587, 808
user-defined units
. . . . . . . . . . . . . . . 290