Texas Instruments TI-89 Titanium Short User Manual page 257

tan()
@
2 Y key
expression1
tan(
) ⇒
list1
tan(
expression1
tan(
argument as an expression.
list1
tan(
elements in
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
is
element. For information about the calculation
method, refer to
squareMatrix1
always contains floating-point numbers.
tanê ()
@
¥ S key
expression1
tanê (
) ⇒
list1
tanê (
tanê (
tangent is
tanê (
of 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
squareMatrix1
the inverse tangent of each element. For
information about the calculation method, refer
to
cos()
squareMatrix1
always contains floating-point numbers.
tanh()
MATH/Hyperbolic menu
expression1
tanh(
) ⇒
list1
tanh(
tanh(
of the argument as an expression.
tanh(
of each element of
Appendix A: Functions and Instructions
) ⇒
expression
list
returns the tangent of the
)
returns a list of the tangents of all
)
.
list1
) ⇒
squareMatrix
the same as calculating the tangent of each
.
cos()
must be diagonalizable. The result
) ⇒
expression
list
returns the angle whose
expression1
)
as an expression.
expression1
returns a list of the inverse tangents
list1
)
.
list1
) ⇒
squareMatrix
not
. This is the same as calculating
.
must be diagonalizable. The result
) ⇒
expression
list
returns the hyperbolic tangent
expression1
)
returns a list of the hyperbolic tangents
list
)
.
list1
H
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
squareMatrix1
tan([1,5,3;4,2,1;6,ë 2,1]) ¸



H
2 S key
In Degree angle mode:
tanê (1) ¸
In Radian angle mode:
tanê ({0,.2,.5}) ¸
In Radian angle mode:
tanê([1,5,3;4,2,1;6,ë 2,1])
¸
tanh(1.2) ¸
tanh({0,1}) ¸
ë 28.291... 26.088...
ë 7.835...
12.117...
ë 32.806... ë 10.459...
36.818...
{0

ë.083... 1.266...

.748... .630...

1.686... ë 1.182... .455...
1
1
‡3
{0 undef}
1
1
{0 ‡3 0 1}

11.114...

ë 5.481...

45
... ...
.197 .463 }

.622...

ë.070...

...
.833
{0 tanh(1)}
251