3.19.3 Can you answer these questions?

3.19.3.1 Passing boolean parameters to a .NET Method using NETLink

http://mathematica.stackexchange.com/questions/130658/passing-boolean-parameters-to-a-net-method-using-netlink

 
According to the NETLink documentation, NETLink automatically handles type conversions from Mathematica to a .NET dll.  One of the issues I have is that the .NET method I want to use expects a Boolean  ...
 

- asked by user39464 1vote

3.19.3.2 ParametricPlot3D Self Intersection

http://mathematica.stackexchange.com/questions/130460/parametricplot3d-self-intersection

 
I would like to know where my ParametricPlot3D 
intersects itself and to extract all intersections (points, lines, surfaces...) to animate them by changing P: 
 
ParametricPlot3D[{fX[u,v,P], fY[u,v,P],  ...
 

- asked by chkone 3votes

3.19.3.3 Faster solution to combinatorial problem of two-part contractions

http://mathematica.stackexchange.com/questions/130598/faster-solution-to-combinatorial-problem-of-two-part-contractions

 
Given a list of elements I need all possible pairings of elements with a leading factor that describes the number of permutations. A (ugly but) working version would be: 
 
list = {a, b, c, d}; 
res =  ...
 

- asked by pbx 2votes

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