G (Gradian) Math/Angle Menu; R (Radian) Math/Angle Menu; 2Nd (Degree) Key; 2Nd (Angle) Key - Texas Instruments TITANIUM TI-89 User Manual

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