Texas Instruments Titanium TI-89, Руководство пользователя

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788 Appendix A: Functions and Instructions
DispTbl
CATALOG
DispTbl
Displays the current contents of the Table screen.
Note: The cursor pad is active for scrolling. Press
N
or
¸
to resume execution if in a
program.
5
ù
cos(x)
!
y1(x)
¸
DispTbl
¸
4
DMS
MATH/Angle menu
expression 4
DMS
list 4
DMS
matrix 4
DMS
Interprets the argument as an angle and displays
the equivalent
DMS
(
DDDDDD
¡
MM
¢
SS.ss
£
) number.
See
¡
, ', " on page 883 for DMS (degree, minutes,
seconds) format.
Note : 4
DMS
will convert from radians to degrees
when used in radian mode. If the input is followed
by a degree symbol (
¡
), no conversion will occur.
You can use 4
DMS
only at the end of an entry line.
In Degree angle mode:
45.371
4
DMS
¸
45
ó
22'15.6"
{45.371,60}
4
DMS
¸
{45
ó
22'15.6" 60
ó
}
dotP()
MATH/Matrix/Vector ops menu
dotP( list1 , list2 )
⇒
expression
Returns the “dot” product of two lists.
dotP({a,b,c},{d,e,f})
¸
a
ø
d + b
ø
e + c
ø
f
dotP({1,2},{5,6})
¸
17
dotP(
vector1
,
vector2
)
⇒
expression
Returns the “dot” product of two vectors.
Both must be row vectors, or both must be column
vectors.
dotP([a,b,c],[d,e,f]) ¸
a ø d + b ø e + c ø f
dotP([1,2,3],[4,5,6])
¸
32
DrawFunc
CATALOG
DrawFunc
expression
Draws
expression
as a function, using
x
as the
independent variable.
Note : Regraphing erases all drawn items.
In function graphing mode and
ZoomStd
window:
DrawFunc 1.25x ù cos(x) ¸
DrawInv
CATALOG
DrawInv
expression
Draws the inverse of
expression
by plotting
x
values
on the y axis and
y
values on the x axis.
x
is the independent variable.
Note : Regraphing erases all drawn items.
In function graphing mode and
ZoomStd
window:
DrawInv 1.25x
ù
cos(x)
¸