() , .
, 757,7 7 , 7 , 7 .
757,7 :
700 + 50 + 7 + 0,7 = 7102 + 5101 + 7100 + 710-1 = 757,7.
.
, .
, , .. , : , , .. q :
an-1 qn-1 + an-2 qn-2+... + a1 q1 + a0 q0 + a-1 q-1 +... + a-m q-m,
ai ; n m , .
. .
, , , .. . , . , , . .
2.
, . , .
: , :
3 2 1 0
10112 = 1*23+0*22+1*21+1*20=8+0+2+1 = 8+0+2+1 = 1110
2. :
1) 1012 =
2) 10012 =
3) 10001012 =
4) 11001102 =
5) 111000112 =
:
1) 2 ;
2) 0, 1) ;
3) 0, .
: 2510 .
, 2510 = 110012
3. :
1) 3710 =
2) 5910 =
3) 11610 =
4) 24510 =
5) 56410 =
,
|
|
. 8 : 0,1,2,3,4,5,6,7. 8 2 . .
0 .
, , , .
: 110111000112 .
110111000112 = 011 011 100 011
3 3 4 3
, 110111000112 = 3343.
4. :
1) 100010010112 =
2) 1001100110012 =
3) 1011011110102 =
4) 1001111001002 =
, .
. 3568 .
3568 = 3 5 6
011 101 110
, 3568 = 111011102
5. :
1) 2678 =
2) 7418 =
3) 6528 =
4) 5438 =
. 10 16 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A (10), B (11), C (12), D (13), E (14), F (15).
16 2 . 4- .
A | |
B | |
C | |
D | |
E | |
F |
, 1 0.
: 0F16 .
0F16 = 0 F
1010 0000 1111
, 0F16 = 1010000011112
6. :
1) A216 =
2) 616 =
3) D9716 =
4) E8F016 =
, 4 , .
. 1101101011012 .
|
|
1101101011012 = 1101 1010 1101
D D
, 1101101011012 = DAD16
7. .
1) 1001101110112 =
2) 100000100102 =
3) 1011110010012 =
4) 1111000011102 =
1.3. .
, , . , .
: | 0 + 0 = 0 |
0 + 1 = 1 | |
1 + 0 = 1 | |
1 + 1 = 10 | |
0 * 0 = 0 | |
0 * 1 = 0 | |
1 * 0 = 0 | |
1 * 1 = 1 | |
0 - 0 = 0 | |
1 0 = 1 | |
1 1 = 0 | |
0 1 = 11( ) |
. 101100 1011.
+ 1011
. 101 11.
*11
+101
8. :
1) 1001112 + 10112 =
2) 1100112 + 110112 =
9. :
1) 110012 * 10012 =
2) 101112* 110112=
10. :
1) 10010 1001 =
2) 101,011 1,110 =
3) 101,011 11,101 =
.
1. ?
2. ?
3. ?
4. ? ?
1. :
168 =
558 =
2. :
3416 =
3. :
1001110011112 =
1101010101012 =
4. :
1111011112 =
101101012 =
5. :
101102 =
10101012 =
6. :
12310 =
4510 =
7. :
4325 =
23015 =
8. :
10110112 + 10110112 =
111112 + 1000012 =
9. :
111001 111 =
11101,001 1111,11 =
10. :
1012 * 11012 =
10102 * 11112 =
11. :
547 + 237 =
1234 + 2014 =