Scientific Functional Calculations; Logarithms And Antilogarithms; Fraction Calculation - Citizen SR-281N Manual Del Usuario

Scientific Functional Calculations

Use MAIN ( [ MODE ] 1 ( MAIN ) ) mode for scientific function
calculations.

Logarithms and Antilogarithms

The calculator can calculate common and natural logarithms and
anti-logarithms using [ log ], [ ln ], [ 2nd ] [ 10
ln 7 + log 100 = 3.94591014906
[ ln ] 7 [ + ] [ log ] 100 [=]
2 –5
10 + e = 100.006737947
X X
[ 2nd ] [ 10 ] 2 [ + ] [ 2nd ] [ e ] 5
[ + / – ] [=]

Fraction calculation

Fraction value display is as follow :
5
5 」12
Display of 56 ∪ 5 」12 Display of 56
12
(Note): Values are automatically displayed in decimal format whenever
the total number of digits of a fractional values ( integer +
numerator + denominator + separator marks ) exceeds 12.
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.
2 5 8
+ =
7 14 22
3 7 21
7 [ a b / c ] 2 [ a b / c ] 3 [ + ] 14 [ a b / c ]
5 [ a b / c ] 7 [=]
During a fraction calculation, if the figure is reducible, a figure is
reduced to the lowest terms after pressing a function command key
( [ + ], [ – ], [ x ] or [ ] ) or the [=] key. By pressing [ 2nd ] [
displayed value will be converted to the improper fraction and vice
versa. To convert between a decimal and fractional result, press
[ a b / c ].
-E13-
File name : CBM_SR-281N_IB_English_black_v09330.doc
Date: 2009/3/30 Trimmed Size : 140 x 75 mm
x x
], and [ 2nd ] [ e ].
DEG
l n 7 + l o g 1 0 0 =
3 . 9 4 5 9 1 0 1 4 9 0 6
DEG
^ ^
10 2 + e – 5 =
1 0 0 . 0 0 6 7 3 7 9 4 7
5
12
DEG
+
7 2 3 1 4 5 7
2 2 8 2 1 .
d / e ], the
SCALE 1 : 1