Texas Instruments TI-89 Titanium Short User Manual page 280

ô
(radian)
MATH/Angle menu
expression1 ô
⇒
list1 list
ô
⇒
matrix1
ô
In Degree angle mode, multiplies
180/p. In Radian angle mode, returns
unchanged.
This function gives you a way to use a radian
angle while in Degree mode. (In Degree angle
mode,
rectangular conversions expect the angle
argument to be in degrees.)
Hint: Use ô if you want to force radians in a
function or program definition regardless of the
mode that prevails when the function or program
is used.
¡
(degree) 2 "
¡ ⇒
expression
¡ ⇒
list1 list
¡ ⇒
matrix1
In Radian angle mode, multiplies
p/180. In Degree angle mode, returns
unchanged.
This function gives you a way to use a degree
angle while in Radian mode. (In Radian angle
mode,
rectangular conversions expect the angle
argument to be in radians.)
2 '
(angle)
radius, angle
q_
[
radius, angle,Z_coordinate
q_
[
(cylindrical input)
angle, f_angle
radius, q_
[
(spherical input)
Returns coordinates as a vector depending on the
Vector Format
cylindrical, or spherical.
magnitude
(
Enters a complex value in (r q) polar form. The
is interpreted according to the current Angle
angle
mode setting.
274
⇒
expression
matrix
, , , and polar-to-
sin() cos() tan()
key
value
matrix
, , , and polar-to-
sin() cos() tan()
key
⇒
vector
(polar input)
]
⇒
vector
]
⇒
vector
]
mode setting: rectangular,
) ⇒
angle complexValue
In Degree or Radian angle mode:
cos((p/4)ô ) ¸
by
expression1
expression1
cos({0ô,(p/12)ô,ë pô }) ¸
In Radian angle mode:
cos(45¡) ¸
by
expression
cos({0,p/4,90¡,30.12¡})
expression
[5, 60¡, 45¡] ¸
In Radian mode and vector format set to:
In Radian angle mode and Rectangular
(polar input)
complex format mode:
5+3
¥¸
Appendix A: Functions and Instructions
( 3 +1)ø 2
{
1
{1 .707
i ì (10 p/4) ¸
5ì 5ø 2+(3ì 5ø 2)ø
ë 2.071...ì 4.071...ø
‡2
2
}
ë 1
4
‡2
2
¥
¸
... ...
0 .864 }
rectangular
cylindrical
spherical
i
i