CITIZEN SR-260N - Инструкция (Страница 14)

SR-260N_English_090324.rtf SIZE: 135x75mm / SCALE 2:1 / 2009/3/24
E13
Converting from Polar to Rectangular
DEG 25 [ a ] 56 [ b ] [ 2ndF ]
[PÆR]
1 3. 9 8
DEG
If r = 25 and θ
= 56°, what are
a and b?
[ b ]
2 0. 7 3
Permutations, Combinations
nPr =
! ) (
!
r n
n
−
nCr =
! ) ( !
!
r n r
n
−
DEG How many
permutations of
4 items can you
select out of a
set of numbers
of 7 items?
7 [ 2ndF ] [ nPr ] 4 [ = ]
8 4 0. 0 0
DEG How many
combinations of
4 items can you
select out of a
set of numbers
of 7 items?
7 [ 2ndF ] [ nCr ] 4 [ = ]
3 5. 0 0
Sexagesimal ↔ Decimal form conversion
The calculator enables you to converts the sexagesimal figure (degree,
minute and second) to decimal notation by pressing [
] and
converts the decimal notation to the sexagesimal notation by [2ndF]
[
].
Sexagesimal figure value display is as follow :
12□ 45 I 30 I I 5 Represent 12 degrees, 45 minutes, 30.5 seconds
(Note) : The total digits of D, M and S and separator marks must be
within 10 digits, or the sexagesimal couldn’t be shown
completely.
Converting from Sexagesimal to Decimal
DEG
12 deg., 45 min.,
30.5 sec.=?
12 [ ] 45
[ ] 30.5
[ ]
1 2. 7 6
Converting from Decimal to Sexagesimal
2.12345 = ?
2.12345 [ 2ndF ]
[
] 2 □ 7 I 2 4 I I 4 2