Monthly Archives: September 2010

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All things come alike to all: there is one event to the righteous, and to the wicked … as is the good, so is the sinner…. This is an evil among all things that are done … that there is … Continue reading

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All things come alike to all: there is one event to the righteous, and to the wicked … as is the good, so is the sinner…. This is an evil among all things that are done … that there is … Continue reading

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How come you can turn a T-shirt inside out? The automorphism group of a 3-times punctured sphere has 12 path-components (12 elements up to isotopy). There are 6 elements that preserve orientation, and 6 that reverse. In particular the orientation-reversing … Continue reading

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How come you can turn a T-shirt inside out? The automorphism group of a 3-times punctured sphere has 12 path-components (12 elements up to isotopy). There are 6 elements that preserve orientation, and 6 that reverse. In particular the orientation-reversing … Continue reading

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μ d𝓽 + σ dW𝓽, my #$$

μ dt + σ dWt, my #$$ The simplest model of a stock price movement is that the log of the price moves in a direction, plus some noisy drift (like adding a Gaussian W𝓽 at every timestep). Agustin Silvani … Continue reading

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μ d𝓽 + σ dW𝓽, my #$$

μ dt + σ dWt, my #$$ The simplest model of a stock price movement is that the log of the price moves in a direction, plus some noisy drift (like adding a Gaussian W𝓽 at every timestep). Agustin Silvani … Continue reading

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!0 is 1

!0 === 1 Only tested this in Javascript and Ruby, but I bet it works in C like it did in Javascript. chris@scheherazade:~$ jsRhino 1.7 release 2 2010 01 20 js> 3+!04 Ruby is safeguarded against such hijinks: chris@scheherazade:~$ irbirb(main):001:0> … Continue reading

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