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Runge Kutta Video Game

http://www.youtube.com/watch?v=qaPuPouEfbM
Browsing on youtube, I found a game named after the two German mathematicians Carl Runge and Martin Kutta.  The author of the game says he used the Runge Kutta method to simulate the spring in the game.
He says he uses RK4 with a frame timestep of t = t + 0.1, when running at 60fps.  […]

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Brief Monte Carlo History

Enrico Fermi in the 1930’s used Monte Carlo in the calculation of neutron diffusion. He would later design a Monte Carlo mechanical device used in calculating criticality in nuclear reactors. That device was called the Fermiac.John Louis von Neumann in the 1940’s established the mathematical basis for PDF’s, CDF’s, and pseudorandom number generators. […]

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$218 Trillion Phone Bill – Rounding error?

http://www.msnbc.msn.com/id/12247590/
 
http://catless.ncl.ac.uk/Risks/24.30.html#subj19.2
 
Just so I’m clear, I’m not entirely sure if this story was due to a rounding error, but there seem to be a few posts (hopefully not careless ones) out there that imply that it was.  I don’t believe the phone company has released their version of the report.  With that in mind, here is […]

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