The term "decimal comma" exists in English and is needed precisely when discussing the use of the comma as the decimal separator. For example:http://mathworld.wolfram.com/DecimalComma.html
The symbol used in continental Europe to denote a decimal point, for example 3,14159....
SEE ALSO: Decimal Pointhttp://www.answers.com/topic/decimal-separator
In countries with a decimal comma, the decimal point is also common as the "international" notation and under the influence of e.g. electronic calculators using the decimal point. Computer programs can usually be adapted to use the local separator, but even on the same computer it is not uncommon that some programs use commas and some use points. [...]
Countries where a dot is used to mark the radix point include:
Australia, Brunei, Botswana, Canada (English-speaking), China, Dominican Republic, El Salvador, Guatemala, Honduras, Hong Kong of the People's Republic of China, India, Ireland, Israel, Japan, Korea (both North and South), Malaysia, Mexico, New Zealand, Nicaragua, Nigeria, Pakistan, Panama, Philippines, Peru, Singapore, Sri Lanka, Taiwan, Thailand, United Kingdom, United States (including insular areas)
Countries where a comma is used to mark the radix point include:
Albania, Andorra, Argentina, Austria, Azerbaijan, Belarus, Belgium, Bolivia, Bosnia and Herzegovina, Brazil, Bulgaria, Cameroon, Canada (French-speaking), Costa Rica, Croatia, Cuba, Chile, Colombia, Cyprus, Czech Republic, Denmark, Ecuador, Estonia, Faroes, Finland, France, Germany, Greece, Greenland, Hungary, Indonesia, Iceland, Italy, Latvia, Lithuania, Luxembourg (uses both separators officially), Macedonia, Moldova, Netherlands, Norway, Paraguay, Poland, Portugal, Romania, Russia, Serbia, Slovakia, Slovenia, South Africa, Spain, Sweden, Switzerland, Turkey, Ukraine, Uruguay, Venezuela, Vietnam, Zimbabwe