Cos -1 Key; Cosh And Cosh -1 Math/Hyperbolic Menu - Texas Instruments TITANIUM TI-89 User Manual

cosê ()
¥ R key
expression1
cosê (
) ⇒ ⇒ ⇒ ⇒
list1
cosê (
expression1
cosê (
is
expression1
list1
cosê (
each element of
Note: The result is returned as a degree, gradian
or radian angle, according to the current angle
mode setting.
squareMatrix1
cosê(
Returns the matrix inverse cosine of
not
This is
cosine of each element. For information about the
calculation method, refer to
squareMatrix1
always contains floating-point numbers.
cosh()
MATH/Hyperbolic menu
expression1
cosh(
) ⇒ ⇒ ⇒ ⇒
list1
cosh(
expression1
cosh (
of the argument as an expression.
list1
cosh (
of each element of
squareMatrix1
cosh(
Returns the matrix hyperbolic cosine of
squareMatrix1
the hyperbolic cosine of each element. For
information about the calculation method, refer
to
cos()
squareMatrix1
always contains floating-point numbers.
coshê ()
MATH/Hyperbolic menu
expression1
coshê (
) ⇒ ⇒ ⇒ ⇒
list1
coshê (
coshê (
cosine of the argument as an expression.
coshê (
hyperbolic cosines of each element of
squareMatrix1
coshê(
Returns the matrix inverse hyperbolic cosine of
squareMatrix1
the inverse hyperbolic cosine of each element. For
information about the calculation method, refer
to
cos()
squareMatrix1
always contains floating-point numbers.
796
) ⇒ ⇒ ⇒ ⇒
expression
list
returns the angle whose cosine
)
as an expression.
returns a list of the inverse cosines of
)
.
list1
) ⇒ ⇒ ⇒ ⇒
squareMatrix
the same as calculating the inverse
cos()
must be diagonalizable. The result
) ⇒ ⇒ ⇒ ⇒
expression
list
returns the hyperbolic cosine
)
returns a list of the hyperbolic cosines
)
.
list1
) ⇒ ⇒ ⇒ ⇒
squareMatrix
. This is not the same as calculating
.
must be diagonalizable. The result
) ⇒ ⇒ ⇒ ⇒
expression
list
returns the inverse hyperbolic
expression1
)
list1 returns a list of the inverse
)
) ⇒ ⇒ ⇒ ⇒
squareMatrix
not
. This is the same as calculating
.
must be diagonalizable. The result
In Degree angle mode:
cosê (1) ¸
In Gradian angle mode:
cosê (0) ¸
In Radian angle mode:
cosê ({0,.2,.5}) ¸
In Radian angle mode and Rectangular complex
format mode:
squareMatrix1 .
cosê([1,5,3;4,2,1;6,ë2,1]) ]) ]) ])
¸
.
1.734...+.064...ø


ë.725...+1.515...ø

ë 2.083...+2.632...ø
cosh(1.2) ¸
cosh({0,1.2}) ¸
In Radian angle mode:
cosh([1,5,3;4,2,1;6,ë2,1])
¸
421.255 253.909 216.905


327.635 255.301 202.958

226.297 216.623 167.628
coshê (1) ¸
coshê ({1,2.1,3}) ¸
list1 .
In Radian angle mode and Rectangular complex
format mode:
coshê([1,5,3;4,2,1;6,ë2,1]) ¸
2.525...+1.734...ø


.486...ì.725...ø

ë.322...ì 2.083...ø
Appendix A: Functions and Instructions
p
{
1.369 1.047
...
2
i
ë 1.490...+2.105...ø
i i
.623...+.778...ø
i
1.790...ì 1.271...ø
1.810
{1 1.810



{0 1.372 coshê (3)}
...
i i
ë.009...ì 1.490...ø
i i
1.662...+.623...ø ...
i i
1.267...+1.790...ø
0
100
... }
i
...


...

i
...
...
}
...
0
...



...