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OBD talk:BINA/PAR3: Difference between revisions
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:The result ( v1 + z * v2 ) is, to a good approximation, a ''normally'' distributed random variable, centered at v1 and with standard mean deviation v2. Apart from the approximation arising from the linear interpolation, the distribution is cut off at 99.8% of expectancy, so all the values will be within 3.09023*v2 of v1. | :The result ( v1 + z * v2 ) is, to a good approximation, a ''normally'' distributed random variable, centered at v1 and with standard mean deviation v2. Apart from the approximation arising from the linear interpolation, the distribution is cut off at 99.8% of expectancy, so all the values will be within 3.09023*v2 of v1. | ||
::[[User:Geyser|geyser]] 03:12, 7 December 2007 (CET) | ::[[User:Geyser|geyser]] 03:12, 7 December 2007 (CET) | ||
Boy, what a ton of interest this little function generates :). The interval for r is [-0.999, 0.999] to be precise (it originates as [-1, 1] and it is multiplied with 0.999). And yes, it is supposed to be distributed uniformly. Here is the (pseudo)random number generator: [[wikipedia:Linear_congruential_generator|linear congruential generator]], the one from Numerical Receipes. | |||
[[User:Neo|Neo]] | |||