From time to time I need to explain how some piece of code works
where there is a bit of math. There are many pages of notes and
nearly all of them were done on graph paper with my old Montblanc
fountain pen. Carefully. Then again some notes are messy thoughts
thrown on paper to be organized later.
A full index with comments will appear at some point.
Example : Line Plane intercept in R3 space
The various ideas on that diagram are implemented in code which also
detects degenerate cases. What is a line is actually inside a plane?
In that case how does one select an intercept point from the infinite
solutions? I simply went with the point on the line closest to the
point used to define the plane location in R3 space. Seems reasonable.
See :
line_plane_icept.c where there are plenty of comments.
That degenerate case is trivial if one spends a bit of time to think
about it.
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