紀錄的卻是符號哩!
為甚麼呢? 為了姪女的實境脫逃創業學習啦!
羅馬數字(Roman Numbers)
羅馬字 | 數字 | 羅馬字 | 數字 | 羅馬字 | 數字 | 羅馬字 | 數字 |
I | 1 | XI | 11 | XXI | 21 | C | 100 |
II | 2 | XII | 12 | XXIX | 29 | CI | 101 |
III | 3 | XIII | 13 | XXX | 30 | CC | 200 |
IV | 4 | XIV | 14 | XL | 40 | D | 500 |
V | 5 | XV | 15 | XLVIII | 48 | DC | 600 |
VI | 6 | XVI | 16 | IL | 49 | CM | 900 |
VII | 7 | XVII | 17 | L | 50 | M | 1000 |
VIII | 8 | XVIII | 18 | LX | 60 | MDCLXVI | 1666 |
IX | 9 | XIX | 19 | XC | 90 | MCMLXX | 1970 |
X | 10 | XX | 20 | XCVIII | 98 |
Binary number
1 = 0001
2 = 0010
3 = 0011
4 = 0100
5 = 0101
6 = 0110
7 = 0111
8 = 1000
9 = 1001
10 = 1010
11 = 1011
12 = 1100
13 = 1101
14 = 1110
15 = 1111
16 = 0001 0000
17 = 0001 0001
18 = 0001 0010
19 = 0001 0011
20 = 0001 0100
21 = 0001 0101
22 = 0001 0110
23 = 0001 0111
24 = 0001 1000
100 would be 0110 0100
(0x128)+(1x64)+(1x32)+(0x16)+(0x8)+(1x4)+(0x2)+(0x1)