Texas Instruments TI-89 Voyage 200, User Manual

Page: 798 / 1008

798 Appendix A: Functions and Instructions
csc()
MATH/Trig menu
csc(
expression1
)
⇒ ⇒ ⇒ ⇒
expression
csc(
list1
)
⇒ ⇒ ⇒ ⇒
list
Returns the cosecant of
expression1
or returns a
list containing the cosecants of all elements in
list1
.
In Degree angle mode:
csc(45)
¸ ‡
2
In Gradian angle mode:
csc(50)
¸ ‡
‡ ‡
‡
2222
In Radian angle mode:
csc({1,
p
/2,
p
/3})
¸
{
1
sin(1)
1 2
¦
3
3 }
csc
LLLL 1
()
MATH/Trig menu
csc -1 (
expression1
)
⇒ ⇒ ⇒ ⇒
expression
csc -1 (
list1
)
⇒ ⇒ ⇒ ⇒
list
Returns the angle whose cosecant is expression1
or returns a list containing the inverse cosecants
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:
csc
L
1 (1)
¸
90
In Gradian angle mode:
csc
L
1 (1)
¸
100
In Radian angle mode:
csc
L
1 ({1,4,6})
¸
{
p
2
sin
L
1 (1/4) sin
L
1 (1/6) }
csch()
MATH/Hyperbolic menu
csch(
expression1
)
⇒ ⇒ ⇒ ⇒
expression
csch(
list1
)
⇒ ⇒ ⇒ ⇒
list
Returns the hyperbolic cosecant of expression1 or
returns a list of the hyperbolic cosecants of all
elements of
list1 .
csch(3)
¸
1
sinh(3)
csch({1,2.1,4})
¸
{
1
sinh(1)
.248…
1
sinh(4)}
csch
LLLL
1 ()
MATH/Hyperbolic menu
csch LLLL 1 (
expression1
)
⇒
⇒ ⇒
⇒
expression
csch LLLL 1 (
list1
)
⇒
⇒ ⇒
⇒
list
Returns the inverse hyperbolic cosecant of
expression1
or returns a list containing the
inverse hyperbolic cosecants of each element of
list1 .
csch
L
1 (1)
¸
sinh -1 (1)
csch
L
1 ({1,2.1,3})
¸
{sinh
L
1 (1) .459… sinh
L
1
(1/3)}
cSolve()
MATH/Algebra/Complex menu
cSolve(
equation
,
var
)
⇒
⇒ ⇒
⇒
Boolean expression
Returns candidate complex solutions of an
equation for
var . The goal is to produce
candidates for all real and non-real solutions.
Even if
equation is real,
cSolve()
allows non-real
results in real mode.
Although the TI-89 Titanium/Voyage™ 200
processes all undefined variables that do not end
with an underscore (_) as if they were real,
cSolve()
can solve polynomial equations for
complex solutions.
cSolve(x^3=
ë
1,x)
¸
solve(x^3=
ë
1,x)
¸