OFFSET
1,1
REFERENCES
A. R. Bradford, Crossword Lists, Collins.
Florian Cajori, A History of Mathematical Notations (1928, repr. Dover, 1993), para. 60.
G. Friedlein, Die Zahlzeichen und das elementare Rechnen der Griechen und Roemer, Erlangen, 1869.
Tartaglia, General Trattato di Numeri, Part I (1556), folios 4, 5.
LINKS
Recreational Groups, Roman Numerals, Postings by several authors.
EXAMPLE
A 500
B 300
C 100
D 500
E 250
F 40
G 400
H 200
I 1
K 51
L 50
M 1000
N 90
O 11
P 400
Q 500
R 80
S 70
T 160
V 5
X 10
Y 150
Z 2000
CROSSREFS
KEYWORD
nonn,base,fini,full
AUTHOR
N. J. A. Sloane, Nov 19 2007, based on email from David Garber and on material from the Roman Numerals web site mentioned above, especially a posting by Peter T. Daniels. Thanks to M. F. Hasler for finding this web site.
STATUS
approved