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SignalUtils.TDiffState Record
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Type used by the numerical differentiation routine.

Pascal
TDiffState = record
  Start1I: double;
  Start1R: double;
  Start2I: double;
  Start2R: double;
end;
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Description

The type stores the initial conditions for the numerical differentiation. Start2R and Start2I are real and imaginary part of the first condition (x[-2]) and Start1R, Start1I are the real and imaginary part of the second condition (x[-1]).

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