Deg,; Example - Citizen SR-270II User Manual

• The calculator enables you to repeat the last operation executed by
pressing [ = ] key for further calculation. See Example 14.
• Even if calculations are concluded with the [ = ] key, the result obtained
can be used for further calculation. See Example 15.
Answer function
• Answer function stores the most recently calculated result. It is re-
tained even after the power is turned off. Once a numeric value or
numeric expression is entered and [ = ] is pressed, the result is stored
by this function. See Example 16.
(Note) : Even if execution of a calculation results in an error, however,
Answer memory retains its current value.
Scientific Calculation
☺ Use the COMP mode for scientific calculations.
Logarithms and Antilogarithms
• The calculator can calculate common and natural logarithms and anti-
logarithms using [ log ], [ ln ], [ 2nd ] [ 10

Example 17~19.

Fraction calculation
Fraction value display is as follow :
5 ┘ 12
56 5 ┘ 12
┘
(Note) :Values are automatically displayed in decimal format whenever
the total number of digits of a fractional values (integer + nu-
merator + denominator + separator marks) exceeds 10.
• To enter a mixed number, enter the integer part, press [ a
b
numerator, press [ a / ], and enter the denominator ; To enter an
c
improper fraction, enter the numerator, press [ a
denominator. See Example 20.
d
• By pressing [ 2nd ] [ / ], the displayed value will be converted to the
c
improper fraction and vice versa. To convert between a decimal and
b
fractional result, press [ a /
• Calculations containing both fractions and decimals are calculated in
decimal format. See Example 22.
x
], and [ 2nd ] [ e
5
Display of
12
5
Display of 56
12
b
/
c
b
/ ], and enter the
c
] .See Example 21.
c
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 :
Angle conversions ( See Example 23.) :
1.
2.
3.
The units you can select are D (degrees), R (radians), G
(Gradians).
4.
5.
Trigonometric / Inverse-Tri. functions
• SR-270II provides standard trigonometric functions and inverse trigo-
nometric functions - sin, cos, tan, sin
x
]. See
24~26.
(Note) :When using those keys, make sure the calculator is set for the
angle unit you want.
Hyperbolic / Inverse-Hyp. functions
• SR-270II uses [ 2nd ] [ HYP ] to calculate the hyperbolic functions and
inverse- hyperbolic functions - sinh, cosh, tanh, sinh
–1
tanh . See Example 27~28.
(Note) :When using those keys, make sure the calculator is set for the
angle unit you want.
Sexagesimal ↔
], enter the
Sexagesimal notation is as follow
12 59
• The calculator can preform the conversion between decimal and
sexagesimal numbers by [
29~30.
Coordinates transformation
Rectangular Coordinates
5
180 ° = π rad = 200 grad
Change the default angle settings to the units you
want to convert to.
Enter the value of the unit to convert.
Press [ DRG→ ] to display the menu.
D R G
1 2 3
Choose the units you are converting from.
Press [ = ].
–1
, cos
↔ ↔ Decimal transformation ↔ ↔
45.6 Represent 12 Degree, 59 Minutes, 45.6 Seconds
] and [ 2nd ] [
Polar Coordinates
–1 –1
and tan . See Example
–1 –1
, cosh and
]. See Example