math 羅馬數字

羅馬數字內沒有「0」
I - 1
II - 2
III - 3
IV - 4
V - 5
VI - 6
VII - 7
VIII - 8
IX - 9
X - 10
XI - 11
XII - 12
XIII - 13
XIV - 14
XV - 15
XVI - 16
XVII - 17
XVIII - 18
XIX - 19
XX - 20
XXI - 21
XXII - 22
XXVIII - 28
XXIX - 29
XXX - 30
XL - 40
L - 50
LX - 60
LXX - 70
LXXX - 80
XC - 90
XCIX - 99
C- 100
CI - 101
CXI - 111
CXCIX - 199
CC - 200
CCXXII - 222
CCC - 300
CCCXXXIII - 333
CD - 400
D - 500

2009-04-14 15:31:31 補充：
DVI - 506
DLV - 555
DCLXVI - 666
DCCLXXVII - 777
DCCCLXXXVIII - 888
M - 1,000
MC - 1,100
MCC - 1,200
MCCC - 1,300
MCCCXXXIII - 1,333
MCD - 1,400
MCDXLIV - 1,444
MD - 1,500

2009-04-14 15:33:33 補充：
MMM=1000*3=3000
CD=500-100=400
XC=100-10=90
VIII=5+1+1+1=8
MMMCDXCVIII=3498

MMMCDXCVIII = 3498

Because: 1 = I
2 = II
3 = III
4 = IV
5 = V
6 = VI
7 = VII
8 = VIII
9 = IX
10 = X

MMM=3000
CD=400
XC=90
VIII=8
so MMMCDXCVIII=3498

I=1
V=5
X=10
L=50
C=100
D=500
M=1000

Ans:3698

MMMCDXCVIII= MMM + CD + XC + VIII =3498

M=1000, MMM=1000+1000+1000=3000

C=100
D=500
CD=500-100=400

X=10
XC=100-10=90

V=5
I=1
VIII=5+1+1+1=8

3000+400+90+8=3498

I=1
V=5
X=10
L=50
C=100
D=500
M=1000
如較少的數放在左面,則它的值是右面的數-左面的數
MMMCDXCVIII=1000+1000+1000+(500-100)+(100-10)+5+1+1+1=
3000+400+90+8=3498

Ans:3498

MMMCDXCVIII = 3498

Because: 1 = I
2 = II
3 = III
4 = IV
5 = V
6 = VI
7 = VII
8 = VIII
9 = IX
10 = X

2009-04-06 19:00:02 補充：
HOPE YOU CAN GET IT!!

FROM YUCO ALEXENDRA