CITIZEN SR-275EU - Manual (Page 11)

SR17D-D1-E.doc SIZE:140x75mm SCALE 2:1 2003/9/15
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• By pressing [ 2nd ] [
d
/ c ], the displayed value will be converted to
the improper fraction and vice versa. To convert between a deci-
mal and fractional result, press [a
b
/ c ] .See Example 18.
• Calculations containing both fractions and decimals are calculated
in decimal format. See Example 19.
„
Angle units conversion
The angle units (DEG, RAD, GRAD) is set by pressing [ MODE ] to
display the angle menu. The relation among the three angle units is :
180° = π rad = 200 grad
Angle conversions ( See Example 20.) :
1. Change the default angle settings to the units you want to con-
vert to.
2. Enter the value of the unit to convert.
3. Press [ DRG
→ ] to display the menu.
D R G
1 2 3
The units you can select are D(degrees),
R(radians), G(Gradians).
4. Choose the units you are converting from.
5. Press [ = ].
„ Trigonometric / Inverse-Tri. functions
• SR-270ll / SR-275 provides standard trigonometric functions and
inverse trigonometric functions - sin, cos, tan, sin
–1
, cos
–1
and tan
–
1
. See Example 21.
(Note) : When using those keys, make sure the calculator is set for
the angle unit you want.
„
Hyperbolic / Inverse-Hyp. functions
• SR-270ll / SR-275 uses [ 2nd ] [ HYP ] to calculate the hyperbolic
functions and inverse- hyperbolic functions - sinh, cosh, tanh,
sinh
–1
, cosh
–1
and tanh
–1
. See Example 22.
(Note) : When using those keys, make sure the calculator is set for
the angle unit you want.
„ Sexagesimal Decimal transformation
Sexagesimal notation is as follow
12Ƒ 59Ƒ 45.6Ƒ Represent 12 Degree, 59 Minutes, 45.6 Seconds
• The calculator can preform the conversion between decimal and
sexagesimal numbers by [ ] and [ 2nd ] [ ]. See Example 23.