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Contents contributed and discussions participated by Matthew Leingang
Millennium Prize Problems - Wikipedia, the free encyclopedia - 0 views
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Here is the list of Millennium Problems posed by the Clay Mathematics Institute. The first (P vs. NP) is claimed to have been solved, but the jury is still out. The Poincaré Conjecture has been solved, rather famously, by Grigori Perelman a few years ago. The Riemann Hypothesis is probably the most elusive problem in math now that Fermat's Last Theorem and Poincaré have been knocked down.
Free Topo Maps - MyTopo/Maptech MapServer - 0 views
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It's centered on Somerville, MA, but you can enter latitude and longitude or a ZIP code to focus on any point in the US. The curved lines represent points with the same elevation. Lines close together mean a steep slope (either upward or downward depending on the actual elevations). Concentric curves mean a peak or valley. What indicates a saddle point?
Wolfram Demonstrations Project: Curvature and Torsion - 0 views
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Curvature and Torsion Choose among several curves and see the rotation of the Frenet-Serret frame as you move the slider. From this you can perceive the curvature and torsion of the curve. Associated objects (such as the circle of curvature, evolute, and osculating sphere, as well as two views of the Frenet frames) may be displayed.
Wolfram Demonstrations Project: 3D Graph of a General Quadratic Form - 1 views
Wolfram Demonstrations Project: Plane Sections of Surfaces - 0 views
NYU > A & S > Academic Integrity - 1 views
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