Texas Instruments TI-89 Manual Book page 622

U (continued)
Unlock, unlock, 289, 516
upgrading product code, 373, 374
user-defined functions, 46, 77, 78, 97 – 99, 157,
205, 207, 285, 286, 433
user-defined units, 88
V
Value (graph math tool), 122, 123, 132, 138,
159, 183
variables, 47, 48
archiving and unarchiving, 360
archiving, Archive, 289, 361, 416
clearing, 341
copy, CopyVar, 289, 358, 422
copying, 358
data, 240, 241, 242
defined, 59, 337
delayed simplification, 66
delete, DelVar, 60, 77, 102, 289, 291, 434
deleting, 369
in applications, 359
list, 239, 241, 242
local, Local, 286, 288, 289, 290, 464
locking, Lock, 289
locking/unlocking, 54, 358
matrix, 239, 240, 241, 242
moving, MoveVar, 289
overriding, 60
pasting name, 359
renaming, 358
reserved names, 567, 568
statistical, 260, 263
storing, 100
system, 567, 568
text, 94
transmitting, 366, 368
unarchive, Unarchiv, 289, 361, 516
undefined, 59, 337
unknown, solving for, 337, 339
unlocking, Unlock, 289
VAR-LINK, 102, 355, 356, 357, 358, 361
variance( ), variance, 517
Vector Format mode, 41, 552
vectors
cross product, crossP( ), 425
cylindrical vector display, 4Cylind, 429
dot product, dotP( ), 439
unit, unitV( ), 516
Vector Format mode, 41, 552
viewing angle, 162
viewing orbit, 164
W
warranty information, 581
web plots
convergence, 148
divergence, 148
oscillation, 149
WEB, 142, 146, 147
WEB, web plots, 142, 146, 147
when( ), when, 202, 206, 517
While, while, 298, 518
window variables
q max, 137
min, 137
q
step, 137
q
@ x, 566
y, 566
@
diftol, 182
dtime, 182
Estep, 182
eye (rotation), 158, 162, 163
eye
q (x axis), 158, 162
eye
f (z axis), 158, 162, 163
fldres, 182
ncontour, 158
ncurves, 182
nmax, 143, 144
nmin, 143, 144
plotStep, 143, 144
plotStrt, 143, 144
t0, 181
tmax, 131, 181
tmin, 131
tplot, 181
tstep, 131, 181
xgrid, 158
xmax, 113, 131, 137, 143, 144, 158, 182, 566
xmin, 113, 131, 137, 143, 144, 158, 182, 566
xres, 113, 131, 158
xscl, 113, 131, 137, 143, 144, 158, 182
ygrid, 158
ymax, 113, 131, 137, 143, 144, 158, 182, 566
ymin, 113, 131, 137, 143, 144, 158, 182, 566
yscl, 113, 131, 137, 143, 144, 158, 182
zmax, 158
zmin, 158
wire-and-contour graphing, 155, 166
wire-frame graphing, 155, 166
with, |, 10, 58, 60, 67, 538, 569
within string, inString( ), 293, 458
Index 605