CITIZEN SR-281 EN - Manual (Page 15)

File name : SR17E-E.doc
Date: 2003/10/8 Trimmed Size : 140 x 75 mm SCALE 1 : 1
-E15-
RAD
9 0 O =
90 [ 2nd ] [ DRG ]
1 . 5 7 0 7 9 6 3 2 6 7 9
GRAD
1 . 5 7 0 7 9 6 3 2 6 7
[ 2nd ] [ DRG ]
1 0 0 .
Sexagesimal ↔ Decimal transformation
The calculator enables you to convert the sexagesimal figure (degree,
minute and second) to decimal notation by pressing [
] or
convert the decimal notation to the sexagesimal notation by [ 2nd ]
[
].
Sexagesimal figure value display is as follow :
125 45 ʜ 30 ʜ ʜ 55
Represent 125 degrees (D),
45 minutes(M), 30.55 seconds(S)
(Note) : The total digits of D, M and S and separator marks must be
within 12 digits, or the sexagesimal couldn't be shown
completely.
¾ 12.755 = 12 † 45
l
18
l l
DEG 12.755 [ 2nd ] [ ]
1 2 † 4 5
l
1 8
l l
¾ 2 † 45
l
10.5
l l
= 2.75291666667
DEG 2 [ ] 45 [ ] 10.5 [ ]
2 . 7 5 2 9 1 6 6 6 6 6 7
Trigonometric / Inverse-Tri. functions
SR-281 / SR-282 provides standard trigonometric functions and
inverse trigonometric functions - sin, cos, tan, sin
–1
, cos
–1
and tan
–1
.
(Note) : When using those keys, make sure the calculator is set for the
angle unit you want.
¾ sin 30 deg.= 0.5
DEG
s i n 3 0 =
[ sin ] 30 [ ]
0 . 5