Function CreateCircArc( _
   dsMathPoint* Center As MathPoint, _
   dsMathVector* Normal As MathVector, _
   dsMathVector* RefVector As MathVector, _
   double Radius As System.Double, _
   double StartAngle As System.Double, _
   double EndEngle As System.Double _
) As MathCircArc

MathCircArc CreateCircArc( 
   MathPoint Center,
   MathVector Normal,
   MathVector RefVector,
   System.double Radius,
   System.double StartAngle,
   System.double EndEngle
)

CreateCircArc( 
   Center : dsMathPoint,
   Normal : dsMathVector,
   RefVector : dsMathVector,
   Radius : Number,
   StartAngle : Number,
   EndEngle : Number
) : dsMathCircArc

HRESULT CreateCircArc( 
   IMathPoint* Center,
   IMathVector* Normal,
   IMathVector* RefVector,
   DOUBLE Radius,
   DOUBLE StartAngle,
   DOUBLE EndEngle,
   IMathCircArc** CircArc
) 

DSRESULT CreateCircArc( 
   dsMathPoint* Center,
   dsMathVector* Normal,
   dsMathVector* RefVector,
   double Radius,
   double StartAngle,
   double EndEngle,
   dsMathCircArc** CircArc
)