10 #ifndef ROOT_Minuit2_MnMachinePrecision 11 #define ROOT_Minuit2_MnMachinePrecision 65 #endif // ROOT_Minuit2_MnMachinePrecision Namespace for new ROOT classes and functions.
double Eps() const
eps returns the smallest possible number so that 1.+eps > 1.
determines the relative floating point arithmetic precision.
MnMachinePrecision(const MnMachinePrecision &prec)
double Eps2() const
eps2 returns 2*sqrt(eps)
MnMachinePrecision & operator=(const MnMachinePrecision &prec)
void SetPrecision(double prec)
override Minuit's own determination