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Appendix A: Functions and Instructions 415
8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 415 of 132
AndPic
CATALOG
AndPic
picVar
[,
row, column
]
Displays the Graph screen and logically
“ANDS” the picture stored in
picVar
and the
current graph screen at pixel coordinates
(row, column)
.
picVar
must be a picture type.
Default coordinates are (0,0), which is the
upper left corner of the screen.
In function graphing mode and Y= Editor:
y
1(
x
)
= cos
(
x
)
C
TI-89:
2ˆ
Style = 3:Square
TI-92 Plus:
ˆ
Style = 3:Square
„
Zoom = 7:ZoomTrig
ƒ
= 2:Save Copy
A
s...
Type = Picture, Varia
bl
e = PIC
1
y2(x) = sin(x)
TI-89:
2ˆ
Style = 3:Square
TI-92 Plus:
ˆ
Style = 3:Square
y1 = no checkmark (F4 to
d
ese
l
ect
)
„
Zoom = 7:ZoomTrig
TI-89:
"
TI-92 Plus:
¥"
AndPic PIC1
¸
Done
angle()
MATH/Complex menu
angle(
expression1
)
⇒
expression
Returns the angle of
expression1
, interpreting
expression1
as a complex number.
Note:
All undefined variables are treated as
real variables.
In Degree angle mode:
angle(0+2
i
)
¸
90
In Radian angle mode:
angle(1+
i
)
¸
p
4
angle(z)
¸
angle(x+
i
y)
¸
angle(
list1
)
⇒
list
angle(
matrix1
)
⇒
matrix
Returns a list or matrix of angles of the
elements in
list1
or
matrix1
, interpreting each
element as a complex number that
represents a two-dimensional rectangular
coordinate point.
In Radian angle mode:
angle({1+2
i
,3+0
i
,0
ì
4
i
})
¸