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shape of "0"

mab
in Mathematics

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I`ve seen it alot in Physics, called Theta, I don`t rem what it was about though.

  • 2 months later...

How odd - the Mayans invented the 0 but never invented the wheel :D

  • 4 weeks later...

when did number systems featuring zero arrive in europe?

 

and how did the romans get by without a number to signify zero?

The empty Set symbol is a capital letter phi, I looked it up.

 

Usually the symbols for the empty set, whilst looking like phi's are not actually phi

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