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Worldwide distribution of country calling codes. Regions are coloured by first digit. Telephone country codes, but also sometimes referred to as "country dial-in codes", or historically "international subscriber dialing" (ISD) codes in the U.K., are telephone number dialing prefixes for reaching subscribers in foreign countries or areas via international telecommunication networks.
Area codes in Germany (German: Vorwahl) have two to five digits. In addition, the prefix digit 0 must be dialed when calling from within Germany, and must be omitted when calling from abroad. When calling via fixed networks within the same area, the area code is not required.
Telephone numbers in Luxembourg employ a closed dialling system, whereby all numbers are dialed in the same format whether from within Luxembourg or from abroad. There is no trunk prefix like "0".
Many Hindi speakers with Internet use English Wikipedia instead. Given the great geographic spread of the Hindi language, the contributors to the Hindi project live in various areas around the country. There are also prolific users whose native language is not Hindi, as Hindi is a government language in India alongside English.
Official language A language designated as having a unique legal status in the state: typically, the language used in a nation's legislative bodies, and often, official government business.
In addition, trigonometry [8] was further advanced in India, and, in particular, the modern definitions of sine and cosine were developed there. [9] These mathematical concepts were transmitted to the Middle East, China, and Europe [7] and led to further developments that now form the foundations of many areas of mathematics.
The Hindu–Arabic system is designed for positional notation in a decimal system. In a more developed form, positional notation also uses a decimal marker (at first a mark over the ones digit but now more commonly a decimal point or a decimal comma which separates the ones place from the tenths place), and also a symbol for "these digits recur ad infinitum".
Before 1993, telephone numbers would consist either of a two-digit area code and a six-digit subscriber number in cities and large towns, for example, (02) 412702 in Oslo, [1] or a three-digit area code and a five-digit subscriber number in smaller towns, for example, (034) 83000 in Larvik.