History of Number system

	Revision 19 . . December 7, 2001 2:56 am by AxelBoldt [+p-adic number link]
	Revision 18 . . November 10, 2001 4:46 pm by Uriyan [Some more editing]

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Difference (from prior major revision) (no other diffs)

Changed: 5c5

If a text (such as this one) discusses multiple bases, and if ambiguity exists, the base is added in subscript to the right of the number, like this: numberbase. Note that the base is always decimal.

If a text (such as this one) discusses multiple bases, and if ambiguity exists, the base is added in subscript to the right of the number, like this: numberbase. Numbers without subscript are considered to be decimal.

Changed: 18c18

The system that humans use has base 10 because we have ten fingers in our hands. Base 60 has also appeared from time to time (hence the division of an hour to 60 minutes and an minute to 60 seconds).

The system that humans use has base 10 because we have ten fingers on our hands. Base 60 has also appeared from time to time (hence the division of an hour to 60 minutes and an minute to 60 seconds).

Added: 20a21,22

If N is a prime number, one can define base-N numbers whose expansion to the left never stops; these are called the p-adic numbers.