CITIZEN SR-270N - Инструкция (Страница 12)

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• To enter a mixed number, enter the integer part, press [ a b / c ],
enter the numerator, press [ a b / c ], and enter the denominator ; To
enter an improper fraction, enter the numerator, press [ a b / c ], and
enter the denominator. See Example 20.
• 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 21.
• Calculations containing both fractions and decimals are calculated
in decimal format. See Example 22.
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 23.) :
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 [ DRG → ] to display the menu.
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
• The calculator provides standard trigonometric functions and
inverse trigonometric functions - sin, cos, tan, sin –1 , cos –1 and
tan –1 . See Example 24~26.
(Note) :When using those keys, make sure the calculator is set for
the angle unit you want.
Hyperbolic / Inverse-Hyp. functions
• The calculator uses [ 2nd ] [ HYP ] to calculate the hyperbolic
functions and inverse- hyperbolic functions - sinh, cosh, tanh, sinh
–1 , cosh –1 and tanh –1 . See Example 27~28.
(Note) :When using those keys, make sure the calculator is set for
the angle unit you want.