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24-Ruby IV
July 25, 2016
Question

Quatrefoil - Четырехлистник

  • July 25, 2016
  • 0 replies
  • 802 views

A Quatrefoil where |L1-L2+L3-L4|=const. L1, L2, L3 and L4 - distances between 4 focuses and the curves

Video Link : 7116

quatrefoil.png