sqrtfct()

double sqrtfct ( const double &  psample, const double &  v  )

inline

Helper function to save sign problems in sqrt function must not be called where sqrt argument would be negative

Definition at line 112 of file fcsingleforce.cc.

Referenced by zflinefc().

{
  double retval;
  double arg=(v*v*psample*psample)-1.;
  TFXX_assert(arg>=0., "negative argument of sqrt: "
                       "programming error - check source code!");
  retval=sqrt(arg)/v;
  return (retval);
}

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