Texas Instruments TI-89 Voyage 200, User Manual

Page: 909 / 1008

Appendix A: Functions and Instructions 909
G
(gradian)
MATH/Angle menu
expression1
G
¡¡¡¡
⇒ ⇒ ⇒ ⇒
expression
list1
G
¡¡¡¡
⇒ ⇒ ⇒ ⇒
list
matrix1
G
¡¡¡¡
⇒
⇒ ⇒
⇒
matrix
This function gives you a way to use a gradian
angle while in the Degree or Radian modes.
In Radian angle mode, multiplies
expression
by
p /200. In Degree angle mode, multiplies
expression 1 by g/100.
In Gradian mode, returns expression1 unchanged.
In Degree, Gradian or Radian mode:
cos(50 G )
¸
‡
2
2
cos({0,100 G ,200 G })
¸
{1,0.-1}
ô
(radian)
MATH/Angle menu
expression1
ô
⇒ ⇒ ⇒ ⇒
expression
list1
ô
⇒ ⇒ ⇒ ⇒
list
matrix1
ô
⇒ ⇒ ⇒ ⇒
matrix
In Degree angle mode, multiplies
expression1
by
180/ p . In Radian angle mode, returns
expression1
unchanged. In Gradian mode, multiplies
expression1
by 200/
p
.
This function gives you a way to use a radian
angle while in Degree and Gradian mode.
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.
In Degree, Gradian or Radian angle mode:
cos((
p
/4)
ô
)
¸
‡
2
2
cos({0
ô
,(
p
/12)
ô
,
ë p ô
})
¸
{
1
( 3+1)
ø
2
4
ë
1
}
¡¡¡¡
(degree) 2 “
key
expression1
⇒ ⇒ ⇒ ⇒
expression
list1 ¡¡¡¡
⇒ ⇒ ⇒ ⇒
list
matrix1 ¡¡¡¡
⇒ ⇒ ⇒ ⇒
matrix
In Radian angle mode, multiplies
expression
by
p
/180. In Degree angle mode, returns
expression
unchanged.In Gradian angle mode, multiplies
expression1
by 10/9.
This function gives you a way to use a degree
angle while in Gradian and Radian mode.
In Degree, Gradian or Radian angle mode:
cos(45
¡
)
¸
‡
2
2
cos({0,
p
/4,90
¡
,30.12
¡
})
¥
¸
{1 .707
...
0 .864
...
}

 

(angle)
2 ’
key
[
radius, q
_
angle
]
⇒ ⇒ ⇒ ⇒
vector (polar input)
[
radius, q
_
angle,Z_coordinate
]
⇒ ⇒ ⇒ ⇒
vector
(cylindrical input)
[
radius, q
_
angle, 
f
_angle
]
⇒
⇒ ⇒
⇒
vector
(spherical input)
Returns coordinates as a vector depending on the
Vector Format
mode setting: rectangular,
cylindrical, or spherical.
[5,

60
¡
,

45
¡
]
¸
In Radian mode and vector format set to:
rectangular
cylindrical
spherical