Texas Instruments TI-89 Manual Book page 611

D (continued)
derivatives, 10
first derivative, d ( ), 10, 66, 75, 76, 432
numeric derivative, nDeriv( ), 75, 470
Derivatives (graph math tool), 122, 124, 132,
138
deSolve( ), solution, 75, 196, 434
det( ), matrix determinant, 436
diag( ), matrix diagonal, 436
dialog boxes, 35
Dialog, define dialog box, 302, 437
differential equations
DIRFLD, direction field, 180, 185, 198
first order, 186, 196
FLDOFF, field off, 180, 185, 199
graphing, 175 – 199
initial conditions, 184
second order, 187, 196
SLPFLD, slope field, 180, 185, 197
solution methods, 180, 193, 573
third order, 189
troubleshooting, 197
diftol window variable, 182
dim( ), dimension, 293, 437
DIRFLD, direction field, 180, 185, 198
Disp, display I/O screen, 277, 283, 302, 310,
437, 555
DispG, display graph, 302, 305, 438
DispHome, display Home screen, 302, 438
display
graph, DispG, 302, 305, 438
Home screen, DispHome, 302, 438
I/O screen, Disp, 277, 283, 302, 310, 437, 555
table, DispTbl, 302, 305, 438
display as
binary, Bin, 345, 417
4
cylindrical vector, 4Cylind, 429
decimal angle, 4DD, 432
decimal integer, Dec, 345, 432
4
degree/minute/second, 4DMS, 438
Hex, 345, 456
hexadecimal, 4
polar vector, 4Polar, 480
rectangular vector, 4Rect, 489
spherical vector, 4Sphere, 506
Display Digits mode, 31, 41, 550
DispTbl, display table, 302, 305, 438
Distance (graph math tool), 122, 125, 132, 138
divide, à, 527
domain constraints, 69
dot
addition, .+, 530
division, .à, 531
multiplication, .†, 531
power, .^, 531
product, dotP( ), 439
subtraction, .N, 531
dotP( ), dot product, 439
594 Index
DrawFunc, draw function, 212, 308, 439
drawings and drawing
circle, Circle, 308, 420
circles, 214
clearing, ClrDraw, 307, 420
contour, DrwCtour, 308, 441
erasing, 214
freehand, 213
function, DrawFunc, 212, 308, 439
horizontal line, LineHorz, 308, 461
inverse, DrawInv, 212, 308, 439
line, Line, 308, 461
lines, 214, 215
on a graph, 307
parametric, DrawParm, 212, 308, 439
Pencil, 213
polar, DrawPol, 212, 308, 440
slope, DrawSlp, 215, 308, 440
tangent line, LineTan, 308, 462
vertical line, LineVert, 308, 462
DrawInv, draw inverse, 212, 308, 439
DrawParm, draw parametric, 212, 308, 439
DrawPol, draw polar, 212, 308, 440
DrawSlp, draw slope, 215, 308, 440
DropDown, drop-down menu, 302, 440
DrwCtour, draw contour, 168, 308, 441
dtime window variable, 182
E
e, natural log base, 80
e^( ), e to a power, 441
editing, 32
eigVc( ), eigenvector, 442
eigVl( ), eigenvalue, 442
Else, else, 296, 456
ElseIf, else if, 207, 296, 442
end
custom, EndCustm, 302, 429
dialog, EndDlog, 302, 437
for, EndFor, 283, 297, 450
function, EndFunc, 207, 286, 451
if, EndIf, 283, 295, 456
loop, EndLoop, 299, 466
program, EndPrgm, 276, 287, 481
toolbar, EndTBar, 302, 515
try, EndTry, 310, 515
while, EndWhile, 298, 518
EndCustm, end custom, 302, 429
EndDlog, end dialog, 302, 437
EndFor, end for, 283, 297, 450
EndFunc, end function, 207, 286, 451
EndIf, end if, 283, 295, 456
EndLoop, end loop, 299, 466
EndPrgm, end program, 276, 287, 481
EndTBar, end toolbar, 302, 515
EndTry, end try, 310, 515
EndWhile, end while, 298, 518