. . . , ****** 111111. , .
, , . . , I=*, Y=IIIII, X=YY, L=XXXXX .. , . , , , .
R . R . , .
R (R >1) m R :
n
Ar = R^m * (a[i]*R^(-i)),
i=1
:
a[i] { 0,1,..., R-1 } - R- ;
n - (), ;
R - ;
m {..., -2, -1, 0,+1,+2,...} - ;
R^(-i) - i - .
, (R=10) a = {0,1,...9}; (R=2) - a = {0,1}, (R=16), a = {0,1....9,A,B,C,D,E,F} A..F 10..15 .
1) 815=10^3*(8*10^(-1)+1*10^(-2)+5*10(-3))=8*10^2+1*10^1+5*10^0;
2) 8.15=10^1*(8*10^(-1)+1*10^(-2)+5*10^(-3))=8*10^0+1*10^(-1)+5*10^(-2);
3) 0.0815= 10^(-1)*(8*10^(-1)+1*10^(-2)+5*10^(-3))=
=8*10^(-2)+1*10^(-3)+5*10^(-4);
0 1. , ( 10.)
, , .
- ( 0 9). 9, (), . 19 1, . . 9, .
|
|
, - : 0 1. (.. ), , .
:
0
1 ( )
10
11 ( )
100
101
110
111 ..
, . , : 10001001? , , .. :
1476 = 1000 + 400 + 70 + 6
:
1476 = 1 * 10^3 + 4 * 10^2 + 7 * 10^1 + 6 * 10^0
1, 4, 7 6 - 1476. . . , .
. 2:
10001001 = 1*2^7 + 0*2^6 + 0*2^5 + 0*2^4 + 1*2^3 + 0*2^2 + 0*2^1 + 1*2^0
, , 10001001:
1*2^7 + 0*2^6 + 0*2^5 + 0*2^4 + 1*2^3 + 0*2^2 + 0*2^1 + 1*2^0 = 128 + 0 + 0 + 0 + 8 + 0 + 0 + 1 = 137
.. 10001001 2 137 10. :
100010012 = 13710
?
, . - . , , . . , (, ). , .