Monthly Archives: November 2010

On the solution of the general counterfeit coin problem

I read about the counterfeit coin problem with 12 coins and no pre-knowledge about the weight of the odd coin long time ago, but never thought about generalizing it to more coins until recently. The general problem is the following … Continue reading

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on certain socio-psychological studies about the influence of primitive urges

I have not had the opportunity to participate in any psychological or sociological research project. Many of my math colleagues abstain from even looking at those results, because they find it lacking in rigorous support. I am quite open-minded about … Continue reading

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How to tell when to use tensor product or direct product

The first time most people learned about the direct product (also called direct sum) and tensor product may vary wildly, because they are so universal in mathematics, physics and computer science. I learned it first in either multivariable calculus or … Continue reading

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