CITIZEN SR-281 EN - Manual (Page 13)

File name : SR17E-E.doc
Date: 2003/10/8 Trimmed Size : 140 x 75 mm SCALE 1 : 1
-E13-
ENG DEG
K
[ 2nd ] [ ] [ 2nd ] [ ] [ 2nd ]
[ ]
0 . 0 0 0 8 5 7 1 4 2 8 5
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
x
], and [ 2nd ] [ e
x
].
¾ ln 7 + log 100 = 3.94591014906
DEG
l n 7 + l o g 1 0 0
[ ln ] 7 [ + ] [ log ] 100 [ ]
3 . 9 4 5 9 1 0 1 4 9 0 6
¾ 10
2
+ e
–5
= 100.006737947
DEG
10 ^ 2 + e ^ – 5 =
[ 2nd ] [ 10 X ] 2 [ + ] [ 2nd ] [ e X ] 5
[ + / – ] [ ]
1 0 0 . 0 0 6 7 3 7 9 4 7
Fraction calculation
Fraction value display is as follow :
5 ω12 Display of
12
5
56 Ж 5 ω12 Display of 56
12
5
(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.
¾
21
8
22
7
5
14
3
2
7 = +
DEG
7 2 3 + 1 4 5 7
7 [ a b/c ] 2 [ a b/c ] 3 [ + ] 14 [ a b/c ]
5 [ a b/c ] 7 [
]
2 2 8 2 1 .
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 ]