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Co-authored-by: Paul Romano <paul.k.romano@gmail.com>
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Olaf Schumann 2021-10-11 21:20:30 +02:00 • committed by GitHub
parent 3028193f58
commit 358f64c53a
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4 changed files with 21 additions and 16 deletions
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14
include/openmc/distribution.h
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@ -87,7 +87,9 @@ private:
class Rational : public Distribution {
public:
explicit Rational(pugi::xml_node node);
Rational(double a, double b, double n) : offset_{std::pow(a, n+1)}, span_{std::pow(b, n+1) - offset_}, ninv_{1/(n+1)} {};
Rational(double a, double b, double n)
: offset_ {std::pow(a, n + 1)}, span_ {std::pow(b, n + 1) - offset_},
ninv_ {1/(n+1)} {};
//! Sample a value from the distribution
//! \param seed Pseudorandom number seed pointer
@ -95,12 +97,12 @@ public:
double sample(uint64_t* seed) const;
double a() const { return std::pow(offset_, ninv_); }
double b() const { return std::pow(offset_+span_, ninv_); }
double n() const { return 1/ninv_-1; }
double b() const { return std::pow(offset_ + span_, ninv_); }
double n() const { return 1 / ninv_ - 1; }
private:
double offset_; //!< Lower bound of distribution
double span_; //!< Upper bound of distribution
double ninv_; //!< inverse Exponent of distribution
double offset_; //!< a^(n+1)
double span_; //!< b^(n+1) - a^(n+1)
double ninv_; //!< 1/(n+1)
};
//==============================================================================