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# Short Notes

Here are notes that I've written on a variety of topics, mostly on graphics and geometry.

- PNPOLY - Point Inclusion in Polygon
Test - Expansion of my
**comp.graphics.algorithms**FAQ answer on testing whether a point is contained in a polygon, including convex polygons and planar polygons in 3D. - Experiments in Rational Approximation of Functions.
- 3D rotations, e.g., converting between axis-angle, vector, and matrix forms, and doing rotations in Maple.
- 4D rotations. Why is there never an axis of rotation?
- Testing whether a point is contained in a polyhedron.
- Finding the area of a polygon.
- Finding the volume of a polyhedron.
- Differences Between 2D and 3D in Geometry.
- Comment on
*Application Challenges to Computational Geometry*, 13 Jul 96. - Quaternion References
Approximating a smooth function like

*arcsin*with a rational function, (1999).Terrain compression experiments, (1998).

Terrain visibility strategy, (1999).