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• restoring windows xp mode

  - by confusedAgain

  i have widows seven ultimate install on my laptop but use xp mode for many applications on it, is it possible to return an application in xp mode to an earlier restore point in just xp mode or does the host machine need to be restored i do not wish to make any changes on the host but require to either re install windows virtual pc and all the applications and upgrade them slowly to the point my application fails or restore the applications back? any advise on this will be grately recieved

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• Random number within a range based on a normal distribution

  - by ConfusedAgain

  I'm math challenged today :( I want to generate random numbers with a range (n to m, eg 100 to 150), but instead of purely random I want the results to be based on the normal distribution. By this I mean that in general I want the numbers "clustered" around 125. I've found this random number package that seems to have a lot of what I need: http://beta.codeproject.com/KB/recipes/Random.aspx It supports a variety of random generators (include mersiene twister) and can apply the generator to a distribution. But I'm confused... if I use a normal distribution generator the random numbers are from roughly -6 to +8 (apparently the true range is float.min to float.max). How do a scale that to my required range?

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