CITIZEN SRP-280 - Manual (Page 14)

E - 12
1. Change the default angle settings to the units you want to
convert to.
2. Enter the value of the unit to convert.
3. Press [ DMS ] to display the menu. The units you can
select are ° (degrees), ‘ (minutes), “ (seconds), r (radians)
, g (gradians) or      DMS (Degree-Minutes-Seconds).
4. Choose the units you are converting from.
5. Press [ ENTER ] twice.
• To convert an angle to DMS notation, select “     DMS ”, which converts an
entry to DMS notations, i.e., where 1 O 30 I 0 II represents 1 degrees, 30
minutes, 0 seconds. See Example 29.
• To convert a DMS notation to decimal, select ° (degrees), ‘ (minutes),
“ (seconds). See Example 30.
2 - 10 Trigonometric / Inverse-Tri. functions
• SRP-280 / SRP-285 provides standard trigonometric functions and
inverse trigonometric functions - sin, cos, tan, sin –1 , cos –1 and tan –1 .
See Example 31.
(Note) : When using those keys, make sure the calculator is set for the
angle unit you want.
2 - 11 Hyperbolic / Inverse-Hyp. functions
• SRP-280 / SRP-285 uses [ 2nd ] [ HYP ] to calculate the hyperbolic
functions and inverse- hyperbolic functions - sinh, cosh, tanh, sinh –1 ,
cosh –1 and tanh –1 . See Example 32.
(Note) : When using those keys, make sure the calculator is set for the
angle unit you want.
2 - 12 Coordinates transformation
• Pressing [ 2nd ] [ RP ] displays a menu to convert rectangular coordi-
nates to polar coordinates or vice versa. See Example 33.
Rectangular Coordinates Polar Coordinates
x + y i= r (cos + i sin )
(Note) : When using those key, make sure the calculator is set for the angle
unit you want.
Y
X 0
• P( x, y )
x
y
• P( r, )
0 X
r
Y