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  - math.1_PImath.1_PI
  - math.2PImath.2PI
  - math.2_PImath.2_PI
  - math.2_SQRTPImath.2_SQRTPI
  - math.Emath.E
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math.2_PI

FLOAT, read-only, constant.

The value of two times the reciprocal of math.PI (2/Pi).

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