1. 05 Mar, 2012 1 commit
    • Nicolas George's avatar
      timefilter: internally compute feedback factors. · 3073aadf
      Nicolas George authored
      The feedback factors for the timefilter are directly computed from
      the expected period. This commit changes the init function to accept
      the period itself and compute the feedback factors internally,
      rather than having all client code duplicate the formulas.
      
      This commit also actually fixes the formulas: the current code had
      sqrt(2*o), but the correct formula, both theoretically and according
      to experimental testing, is sqrt(2)*o.
      
      Furthermore, it adds an exponential to feedback factors larger than
      1 with large periods.
      3073aadf
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