One

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One – 1
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Numbers: 0 1 2 3 4 5 6 7 8 9

10 20 30 40 50 60 70 80 90

Chinese Hand sign
Chinese Hand sign[1]

One (1) means more than zero but less than two. It represents a single item. A human typically has one head, nose, mouth, and navel (or belly-button). The Roman numeral is I.

Contents

[edit] Language

It is also a pronoun, as in, "one says...", "one does...".

[edit] Mathematics

In mathematics, one is also the only number with this special fact: Any number multiplied by 1 equals that number.

[edit] Computer science

The number one is important for computer science because it is together with Zero a part of the Binary numeral system. In Machine code and in Programming languages one means true. Zero means false.

[edit] Other Meanings

  • In Germany and Austria One is the Grade for "very good". It's the best Grade of 6 possible Grades in Germany and the best of 5 possible Grades in Austria.
  • In the Numerology the one is a symbol for everything, the beginning and God

[edit] Sources

  1. de:Chinesische_Zahlen#Handzeichen_zum_Ausdruck_chinesischer_Zahlen