HP 10s+

19
Converting Angular Measurements
• Press the   keys to display the following
screen
.
•Press
, , or  to change the displayed
value to the corresponding angle unit.
• Example: Change 2.34 radians to degrees.
 ⋅⋅⋅ ⋅⋅⋅  (Deg)
Coordinate Systems (Pol ( ), Rec ( ))
• The result will be stored in variables E and F
automatically.
• Example 1: Express the point defined by the polar
coordinates ( = 4, = 30°) in rectangular
coordinates ( ).
(Deg)
= 3.464101615
  4  30  
= 2  
•Press   to display the value of or press
  to display the value of .
• Example 2: Express the point defined by the
rectangular coordinates (2, ) in polar
coordinates ( ).
(Rad)
= 3
 2   5  
= 0.84106867  
D
1
R
2
G
3
2.34
   (R) 
2.34r
134.0721241
xy,
r θ,
r
θ
xy,
x
y
x
y
5
r θ,
r
θ