Texas Instruments TI-89 Titanium Short User Manual page 170

squareMatrix1
cosê(
Returns the matrix inverse cosine of
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(
cosh (
of the argument as an expression.
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.
cot()
MATH/Trig menu
expression1
cot(
) ⇒
list1 list
cot(
Returns the cotangent of
list of the cotangents of all elements in
Note: The argument is interpreted as either a
degree or radian angle, according to the current
angle mode.
164
) ⇒
squareMatrix
not
the same as calculating the inverse
cos()
must be diagonalizable. The result
) ⇒
expression
list
returns the hyperbolic cosine
expression1
)
returns a list of the hyperbolic cosines
list1
)
.
list1
) ⇒
squareMatrix
not
. This is the same as calculating
.
must be diagonalizable. The result
) ⇒
expression
list
returns the inverse hyperbolic
expression1
)
returns a list of the inverse
list1
)
) ⇒
squareMatrix
not
. This is the same as calculating
.
must be diagonalizable. The result
) ⇒
expression
expression1
In Radian angle mode and Rectangular
complex format mode:
.
squareMatrix1
cosê([1,5,3;4,2,1;6,ë 2,1])
¸
.

1.734...+.064...øi

ë.725...+1.515...øi .623...+.778...øi

ë 2.083...+2.632...øi 1.790...ì 1.271...øi ...
cosh(1.2) ¸
cosh({0,1.2}) ¸
In Radian angle mode:
cosh([1,5,3;4,2,1;6,ë 2,1])
¸
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,ë 2,1])
¸

2.525...+1.734...øi ë.009...ì 1.490...øi ...

.486...ì.725...øi

ë.322...ì 2.083...øi 1.267...+1.790...øi ...
In Degree angle mode:
cot(45) ¸
or returns a
list1 In Radian angle mode:
.
cot({1,2.1,3}) ¸
Appendix A: Functions and Instructions
ë 1.490...+2.105...øi ...

421.255 253.909 216.905

327.635 255.301 202.958

226.297 216.623 167.628
...
{0 1.372
1.662...+.623...øi
1
L.584...
tan(1)


...

...
1.810
...
{1 1.810 }



0
coshê (3)}


...

1
1
tan(3)