2017 UNM-PNM Statewide High School Mathematics Contest II Problems/Problem 9

Revision as of 03:46, 19 January 2019 by Timneh (talk | contribs) (Created page with " == Problem == Consider a triangulation (mesh) of a polygonal domain like the one in the figure below. (a) Given the vertices of a triangle, devise a strategy for determini...")
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)


Problem

Consider a triangulation (mesh) of a polygonal domain like the one in the figure below. (a) Given the vertices of a triangle, devise a strategy for determining if a given point is inside that triangle. (b) Will your strategy work for polygons with more than three sides? (c) After implementing your strategy in an optimally efficient computer code you find that the search for a problem with $100$ triangles, on average, takes $10$ seconds. You refine the triangulation by subdividing each of the triangles into smaller triangles by placing a new vertex at the center of gravity of each triangle. On average, how long will it take to find a point in the new mesh?

Solution

See also

2017 UNM-PNM Contest II (ProblemsAnswer KeyResources)
Preceded by
Problem 8
Followed by
Problem 10
1 2 3 4 5 6 7 8 9 10
All UNM-PNM Problems and Solutions