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| template<class T > | 
| T | ROOT::Math::Util::EvalLog (T x) | 
|  | safe evaluation of log(x) with a protections against negative or zero argument to the log smooth linear extrapolation below function values smaller than epsilon (better than a simple cut-off) 
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| template<typename T , unsigned int N, typename U , unsigned int M> | 
| KahanSum< T, N > | ROOT::Math::operator+ (const KahanSum< T, N > &left, const KahanSum< U, M > &right) | 
|  | Add two non-vectorized KahanSums. 
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| template<typename T , unsigned int N, typename U , unsigned int M> | 
| KahanSum< T, N > | ROOT::Math::operator- (const KahanSum< T, N > &left, const KahanSum< U, M > &right) | 
|  | Subtract two non-vectorized KahanSums. 
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| template<class T > | 
| std::string | ROOT::Math::Util::ToString (const T &val) | 
|  | Utility function for conversion to strings. 
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|  |