Sin(), Sin ê () – Texas Instruments PLUS TI-89 User Manual
Page 518
Appendix A: Functions and Instructions 501
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 501 of 132
simult(
coeffMatrix
,
constMatrix
[
,
tol
]
)
⇒
matrix
Solves multiple systems of linear equations,
where each system has the same equation
coefficients but different constants.
Each column in
constMatrix
must contain the
constants for a system of equations. Each
column in the resulting matrix contains the
solution for the corresponding system.
Solve: x + 2y = 1
x + 2y = 2
3x + 4y = ë 1
3x + 4y = ë 3
simult([1,2;3,4],[1,2;л 1,л 3])
¸
[
л 3 л 7
2 9/2
]
For the first system, x=ë 3 and y=2. For
the second system, x=ë 7 and y=9/2.
sin()
TI
-
89:
2 W
key
TI
-
92 Plus:
W
key
sin(
expression1
)
⇒
expression
sin(
list1
)
⇒
list
sin(
expression1
)
returns the sine of the
argument as an expression.
sin(
list1
)
returns a list of the sines of all
elements in
list1
.
Note:
The argument is interpreted as either a
degree or radian angle, according to the
current angle mode. You can use ó or ô to
override the angle mode setting temporarily.
In Degree angle mode:
sin((
p/4)ô ) ¸
‡2
2
sin(45) ¸
‡2
2
sin({0,60,90}) ¸
{
0
‡3
2 1
}
In Radian angle mode:
sin(
p/4) ¸
‡2
2
sin(45
¡) ¸
‡2
2
sin(
squareMatrix1
)
⇒
squareMatrix
Returns the matrix sine of
squareMatrix1
. This
is not the same as calculating the sine of each
element. For information about the
calculation method, refer to
cos()
.
squareMatrix1
must be diagonalizable. The
result always contains floating-point
numbers.
In Radian angle mode:
sin([1,5,3;4,2,1;6,л 2,1]) ¸
.942… л.045… л.031…
л.045… .949… л.020…
л.048… л.005… .961…
sin
ê
()
TI
-
89:
¥
Q
key
TI
-
92 Plus:
2
Q
key
sin
ê
(
expression1
)
⇒
expression
sin
ê
(
list1
)
⇒
list
sin
ê
(
expression1
)
returns the angle whose
sine is
expression1
as an expression.
sin
ê
(
list1
)
returns a list of the inverse sines of
each element of
list1
.
Note:
The result is returned as either a
degree or radian angle, according to the
current angle mode setting.
In Degree angle mode:
sinê (1) ¸
90
In Radian angle mode:
sinê ({0,.2,.5}) ¸
{0 .201... .523...}