A conversion function for converting between the euro and other currencies is provided that converts a value in one type of currency to a value in another type of currency according to EU-specified conversion rules and rounding rules. The conversion function may utilize full-precision computation or...http://www.google.es/patents/US7590575?utm_source=gb-gplus-sharePatente US7590575 - Method and apparatus for converting, formatting, and displaying currency values
Method and apparatus for converting, formatting, and displaying currency values