CompareSailBillow:

% Compare the solar pressure force for flat and billowed circular sails.

   Since version 7.
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  See also SailMesh, HCircularBillow, SolarPressureForce, PolygonProps, 
  Figui, NewFig, Plot2D, Dot, Mag, Unit, SolarFlx, CP1Props
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	 Copyright 2009 Princeton Satellite Systems, Inc. 
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