what is the meaningof hindu arabics system and roman numaration system
Check these sites.
http://en.wikipedia.org/wiki/Hindu%E2%80%93Arabic_numeral_system
http://en.wikipedia.org/wiki/Roman_numerals
http://en.wikipedia.org/wiki/Hindu%E2%80%93Arabic_numeral_system
http://en.wikipedia.org/wiki/Roman_numerals