csci5607/participation/2023-02-15.md

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# Participation Question 1
**What are the complications that you can imagine that results from including
the points on the side of the triangle in the triangle or not?**
_Hint: Two triangles that share a border may have problems._
If the triangles share a border, then you will have to decide whether points on
the border belong to one or the other. I think there might need to be some kind
of average function or something that decides how different values might be
reconciled, but I think omitting the border from either might also not be the
right solution because you really don't want there to be a gap.
# Participation Question 2
**When d11 \* d22 - d12 \* d12 = 0, the system will have no solution. When might
this happen, and what does it mean?**