The numerals, now in everyday use, are called Arabic numerals, because it was from the Arabs that these numerals spread to Europe. Actually they are Indian in origin and should rightly be called Indian numerals.
The concept of zero and the digital system (including decimals) are India’s contribution to the science of numerals. The Arabs adopted the Indian system. The European got it from the Arabs (see landmarks of science).
Among the authors, who were instrumental in transmitting Indian mathematical knowledge from Arab sources to Europe, the most famous was Leonardo of Pisa (AD 1202). Other important authors were John Seville (1135), Adelard of Bath (1142), Robert of Chester (1142), Villedien (1240) and Sacrabosa (1242).
Student: CHITRA.K.LAL