Also, the principles and architecture rules of their decimal numerals system are likewise at the origin of the Roman one, actually a simplified version ( see : Etruscan numerals ).
12.
The counting rod numerals system has place value and decimal numerals for computation, and was used widely by Chinese merchants, mathematicians and astronomers from the Han dynasty to the 16th century.
13.
In the 10th century, Middle-Eastern mathematicians extended the decimal numeral system to include fractions, as recorded in a treatise by Syrian mathematician Abu'l-Hasan al-Uqlidisi in 952 953.
14.
Just as the same fraction can be written in more than one way, the same decimal may have more than one representation . 1.0 and 0.999 . . . are two different decimal numerals representing the natural number 1.
15.
Earlier than the attestations in the full function as a numeral are a few instances where sampi was used in Athens as a mark to enumerate sequences of things in a set, along with the 24 other letters of the alphabet, without implying a specific decimal numeral value.
