.
. , . , , , . .
. . .
VIII , 1998 ( , , , V , I . .).
:
G = { I, V, X, L, , D, M },
I (1),
V (5),
X (10),
L (50),
(100),
D (500),
M (1000).
:
IX = 9 XC = 90 C = 900
XI = 11 CX = 110 C = 1100
VIII = 8 LXXX = 80 DCCC= 800
.
, () , , , 127 721.
, . , .
, , . q. (): 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, . , G.
, () , q .
q x :
, (1.1)
:
q;
q ;
, q;
n () ;
m .
:
. ().
, (1.2)
().
|
|
: , , , k = 1, 3, 4.
q = 10,
G = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9 }, αi < 10
n = 4
10 :
,
:
q = 2,
G = {0, 1}, < 2
;
n = 7
2 :
:
q = 8,
G = {0, 1, 2, 3, 4, 5, 6, 7}, < 8
;
n = 3
8 :
,
:
q = 16,
G = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, }, < 16
=
;
n = 3
16 :
:
, . .
p q .
(1.1) . .
, p - , q -. p - q, p - . , q. q - . , , , .