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EntityQ228325· pop 19· linked from 7 articles

Also known as C-2

C2 or a derivative (C-2, C2, etc.) may refer to:

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  • Mathematics and physics
  • Biology
  • Chemistry
  • Codes or abbreviations
  • Computing
  • Transportation and space
  • Military and aviation
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C2 or a derivative (C-2, C2, etc.) may refer to:

==Mathematics and physics== C2, one of the common notations for the cyclic group of order 2 C2 differentiability class C2 or \Complex^2, the complex coordinate plane c2 the square of the speed of light (in the mass–energy equivalence formula) C2 (space group), three-dimensional space group number 5

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