Texas Instruments TI-89 Titanium User Manual page 862

tan() @
2 Y key
) ⇒
expression1
tan(
) ⇒
list1 list
tan(
tan( expression1
as an expression.
returns a list of the tangents of all elements
list1
tan( )
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 temporarily.
) ⇒
squareMatrix1
tan(
Returns the matrix tangent of
not the same as calculating the tangent of each
element. For information about the calculation
method, refer to
squareMatrix1
always contains floating-point numbers.
tanê () @
¥ S key
) ⇒
tanê ( expression1
) ⇒
list1 list
tanê (
expression1
tanê (
is
expression1
list1
tanê (
each element of
Note: The result is returned as either a degree or
radian angle, according to the current angle mode
setting.
squareMatrix1
tanê(
Returns the matrix inverse tangent of
This is not the same as calculating the inverse
tangent of each element. For information about the
calculation method, refer to
squareMatrix1
always contains floating-point numbers.
tanh()
MATH/Hyperbolic menu
) ⇒
tanh( expression1
) ⇒
list1 list
tanh(
expression1
tanh(
the argument as an expression.
returns a list of the hyperbolic tangents of
list
tanh( )
each element of
Appendix A: Functions and Instructions
H
expression
returns the tangent of the argument
)
squareMatrix
squareMatrix1
.
cos()
must be diagonalizable. The result
H
expression
returns the angle whose tangent
)
as an expression.
returns a list of the inverse tangents of
)
.
list1
) ⇒
squareMatrix
.
cos()
must be diagonalizable. The result
expression
returns the hyperbolic tangent of
)
.
list1
Y key
In Degree angle mode:
tan((p/4)ô ) ¸
tan(45) ¸
tan({0,60,90}) ¸
In Radian angle mode:
tan(p/4) ¸
tan(45¡) ¸
tan({p,p/3,-p,p/4}) ¸
In Radian angle mode:
. This is
tan([1,5,3;4,2,1;6,ë 2,1]) ¸

ë 28.291... 26.088...

12.117...

36.818...
2 S key
In Degree angle mode:
tanê (1) ¸
In Radian angle mode:
tanê ({0,.2,.5}) ¸
In Radian angle mode:
.
squareMatrix1
tanê([1,5,3;4,2,1;6,ë 2,1])
¸
tanh(1.2) ¸
tanh({0,1}) ¸
‡3
{0 undef}
{0 ‡3 0 1}
11.114...
ë 7.835... ë 5.481...
ë 32.806... ë 10.459...
{0 .197 ... .463

ë.083... 1.266...
.622...

ë.070...
.748... .630...

1.686... ë 1.182... .455...
{0 tanh(1)}
1
1
1
1



45
... }



.833 ...
859