Owner's Manual

796 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(p/4) ¸
1
sin(
p
4
)
In Radian angle mode:
csc({1,p/2,p/3}) ¸
1
sin(1)
1
2
¦ 3
3
csc
L1
() 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 either a degree or
radian angle, according to the current angle
mode.
In Degree angle mode:
csc
L1
(1) ¸ 90
In Radian angle mode:
csc
L1
({1,4,6}) ¸
p
2
sin
L1
(1/4) sin
L1
(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
L1
() MATH/Hyperbolic menu
csch
L1
( expression1 ) ⇒
⇒⇒
⇒ expression
csch
L1
( list1 ) ⇒
⇒⇒
⇒ list
Returns the inverse hyperbolic cosecant of
expression1 or returns a list containing the
inverse hyperbolic cosecants of each element of
list1 .
csch
L1
(1) ¸ sinh
-1
(1)
csch
L1
({1,2.1,3}) ¸
sinh
L1
(1) .459… sinh
L1
(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) ¸