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| | lucatrevisan.wordpress.com
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| | Welcome to phase two of in theory, in which we again talk about math. I spent last Fall teaching two courses and getting settled, I mostly traveled in January and February, and I have spent the last two months on my sofa catching up on TV series. Hence I will reach back to last Spring,...
| | mycqstate.wordpress.com
2.4 parsecs away

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| | Today I'd like to sketch a question that's been pushing me in a lot of different directions over the past few years --- some sane, others less so; few fruitful, but all instructive. The question is motivated by the problem of placing upper bounds on the amount of entanglement needed to play a two-player non-local...
| | nhigham.com
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| | A real $latex n\times n$ matrix $LATEX A$ is symmetric positive definite if it is symmetric ($LATEX A$ is equal to its transpose, $LATEX A^T$) and $latex x^T\!Ax > 0 \quad \mbox{for all nonzero vectors}~x. $ By making particular choices of $latex x$ in this definition we can derive the inequalities $latex \begin{alignedat}{2} a_{ii} &>0...
| | java-source.net
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| [AI summary] The article discusses various open-source scripting languages and tools compatible with the Java platform, such as Groovy, Jython, BeanShell, Rhino, JRuby, and others, highlighting their features and use cases.