Abjad
Abjad letter-numerals have been a letters of a Arabic alphabet since numerical values. They could to illustrate be used in assorted combinations to paint any series from 1 to 1999. It is not a place-notational system, for their worth does not rely on their on all sides relations to a single another. Thus a series 652 would be represented by a letters kha’, [= 600], nun [= 50], as well as ba’ [= 2], no make a difference in what method a letters were arranged. The name abjad comes from a initial 4 letters in a method to which values 1, 2, 3, as well as 4 were assigned, which is, letters, alif, ba’, jim, as well as dal. The pitch for 0 was subsequent from Greek celestial as well as mathematical manuscripts where a pitch was mostly used as an shortening for a Greek word ouden, definition “nothing”. The letter-numerals for numbers 1 by 50 were a same via a Islamic lands, though there were differences in between a Western areas as well as a Eastern when it came to assigning letters to a superfluous values, as can be seen in a following table: