Texas Instruments TI-89 Voyage 200, Руководство пользователя

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Appendix A: Functions and Instructions 797
cot()
MATH/Trig menu
cot(
expression1
)
⇒ ⇒ ⇒ ⇒
expression
cot(
list1
)
⇒ ⇒ ⇒ ⇒
list
Returns the cotangent of
expression1
or returns a
list of the cotangents of all elements in
list1
.
Note: The result is returned as a degree, gradian
or radian angle, according to the current angle
mode setting.
In Degree angle mode:
cot(45)
¸
1
In Gradian angle mode:
cot(50)
¸
1
In Radian angle mode:
cot({1,2.1,3})
¸
{
1
tan(1)
L
.584…
1
tan(3)}
cot
LLLL
1 ()
MATH/Trig menu
cot LLLL 1 (
expression1
)
⇒ ⇒ ⇒ ⇒
expression
cot
LLLL
1 (
list1
)
⇒ ⇒ ⇒ ⇒
list
Returns the angle whose cotangent is
expression1 or returns a list containing the
inverse cotangents of each element of list1 .
Note: The result is returned as a degree, gradian
or radian angle, according to the current angle
mode setting.
In Degree angle mode:
cot
L
1 (1)
¸
45
In Gradian angle mode:
cot
L
1 (1)
¸
50
In Radian angle mode:
cot
L
1 (1)
¸
p
4
coth()
MATH/Hyperbolic menu
coth(
expression1
)
⇒ ⇒ ⇒ ⇒
expression
cot(
list1
)
⇒ ⇒ ⇒ ⇒
list
Returns the hyperbolic cotangent of
expression1
or returns a list of the hyperbolic cotangents of all
elements of
list1
.
coth(1.2)
¸
1.199…
coth({1,3.2})
¸
{
1
tanh(1)
1.003…
}
coth
LLLL 1
()
MATH/Hyperbolic menu
coth
LLLL
1 (
expression1
)
⇒ ⇒ ⇒ ⇒
expression
coth
LLLL
1 (
list1
)
⇒ ⇒ ⇒ ⇒
list
Returns the inverse hyperbolic cotangent of
expression1 or returns a list containing the
inverse hyperbolic cotangents of each element of
list1
.
coth
L
1 (3.5)
¸
.293…
coth
L
1 ({
L
2,2.1,6})
¸
{
L
ln(3)
2
.518… ln(7/5)
2
}
crossP()
MATH/Matrix/Vector ops menu
crossP(
list1
,
list2
)
⇒ ⇒ ⇒ ⇒
list
Returns the cross product of
list1
and
list2
as a list.
list1
and
list2
must have equal dimension, and the
dimension must be either 2 or 3.
crossP({a1,b1},{a2,b2})
¸
{0 0 a1
ø
b2
ì
a2
ø
b1}
crossP({0.1,2.2,
ë
5},{1,
ë
.5,0})
¸
{
ë
2.5
ë
5.
ë
2.25}
crossP(
vector1
,
vector2
)
⇒
⇒ ⇒
⇒
vector
Returns a row or column vector (depending on
the arguments) that is the cross product of
vector1
and vector2 .
Both vector1 and vector2 must be row vectors, or
both must be column vectors. Both vectors must
have equal dimension, and the dimension must
be either 2 or 3.
crossP([1,2,3],[4,5,6])
¸
[
ë
3 6
ë
3]
crossP([1,2],[3,4])
¸
[0 0
ë
2]