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DoubledPi

\[DoubledPi]
  • Alias: pp.
  • Letter-like form.
  • Not by default assigned any interpretation.
  • Not the same as \[Pi].
  • See The Mathematica Book: Section 3.10.3.
  • See also: \[DoubledGamma], \[ExponentialE], \[DoubleStruckA].