Texas Instruments TI-89 Titanium Short User Manual page 161

AndPic
CATALOG
picVar
AndPic
Displays the Graph screen and logically "ANDS"
the picture stored in
screen at pixel coordinates
picVar
Default coordinates are (0,0), which is the upper
left corner of the screen.
angle()
MATH/Complex menu
expression1
angle(
Returns the angle of
expression1
Note: All undefined variables are treated as real
variables.
) ⇒
list1
angle(
matrix1
angle(
Returns a list or matrix of angles of the elements
in list1
complex number that represents a two-
dimensional rectangular coordinate point.
Appendix A: Functions and Instructions
[, row, column ]
and the current graph
picVar
(row, column)
must be a picture type.
) ⇒
expression
expression1
as a complex number.
list
) ⇒
matrix
or matrix1 , interpreting each element as a
In function graphing mode and Y= Editor:
y1(x) = cos(x) C
@
H
.
„ Zoom = 7:ZoomTrig
ƒ = 2:Save Copy As...
Type = Picture, Variable =
PIC1
y2(x) = sin(x)
@
H
y1 = no checkmark (F4 to
deselect)
„ Zoom = 7:ZoomTrig
@
H
AndPic PIC1 ¸
In Degree angle mode:
angle(0+2
, interpreting
In Radian angle mode:
angle(1+
angle(z) ¸
angle(x+
In Radian angle mode:
angle({1+2
2 ˆ Style = 3:Square
ˆ Style = 3:Square
2 ˆ Style = 3:Square
ˆ Style = 3:Square
"
¥"
i
) ¸
i
) ¸
i
y) ¸
i i i }) ¸
,3+0 ,0ì4
Done
90
p
4
155