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kanil gunewardena

Joined: 30 Mar 2012
Posts: 2
Location: USA

 Posted: Sun Apr 15, 2012 7:44 pm    Post subject: Need to plot Fibonacci Spiral in 3D/Intersection [ beginner Need to plot Fibonacci Equiangular Spiral by:- 1) giving polar equation, r = a . e^(theta . cot alpha ) theta  from 0 to 4 pi (sorry; cannot type Greek letters here) 2) Then create a surface of revolution by:- i) rotating above polar function about X or Y axis ii) rotating above about any given line y = mx+ c ( r = f(theta) OR tilting X axis 3) Followed by intersecting the created surface of revolution by an inclined plane, then remove (subtract) the overlapping area common to plane and surface of revolution of spiral Wonder if I could get the equation of the overlapping area generated? If not transfer the area data points to Mathcad to find best fit polynomial.. Is there a way to interface K3DSURF with Mathcad? Thanking you in anticipation. kanil gunewardena
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