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add math::copysign

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fix hyperbolic and exponental functions: for special values
This commit is contained in:
bolero-MURAKAMI 2013-04-24 22:48:36 +09:00
parent a27c83e939
commit 32c3ba02d4
50 changed files with 540 additions and 216 deletions
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16
sprout/random/binomial_distribution.hpp
View file

@ -249,8 +249,8 @@ namespace sprout {
template<int D, typename Engine, SPROUT_RECURSIVE_FUNCTION_TEMPLATE_CONTINUE(D)>
SPROUT_CONSTEXPR sprout::random::random_result<Engine, binomial_distribution>
generate_10(Engine const& eng, RealType v, IntType k, IntType nm, RealType h, IntType nk) const {
return v <= h + (t_ + 1) * sprout::log(static_cast<RealType>(nm) / nk)
+ (k + RealType(0.5)) * sprout::log(nk * btrd_.r / (k + 1)) - fc(k) - fc(t_ - k)
return v <= h + (t_ + 1) * sprout::math::log(static_cast<RealType>(nm) / nk)
+ (k + RealType(0.5)) * sprout::math::log(nk * btrd_.r / (k + 1)) - fc(k) - fc(t_ - k)
? sprout::random::random_result<Engine, binomial_distribution>(k, eng, *this)
: generate<D + 1>(eng)
;
@ -264,7 +264,7 @@ namespace sprout {
SPROUT_CONSTEXPR sprout::random::random_result<Engine, binomial_distribution>
generate_9(Engine const& eng, RealType v, IntType k, IntType nm) const {
return generate_10<D + 1>(
eng, v, k, nm, (m_ + RealType(0.5)) * sprout::log((m_ + 1) / (btrd_.r * nm)) + fc(m_) + fc(t_ - m_), t_ - k + 1
eng, v, k, nm, (m_ + RealType(0.5)) * sprout::math::log((m_ + 1) / (btrd_.r * nm)) + fc(m_) + fc(t_ - m_), t_ - k + 1
);
}
template<int D, typename Engine, SPROUT_RECURSIVE_FUNCTION_TEMPLATE_BREAK(D)>
@ -343,7 +343,7 @@ namespace sprout {
return km <= 15
? generate_7<D + 1>(eng, v, k)
: generate_8<D + 1>(
eng, sprout::log(v), k,
eng, sprout::math::log(v), k,
(km / btrd_.npq) * (((km / RealType(3.0) + RealType(0.625)) * km + RealType(1.0) / 6) / btrd_.npq + RealType(0.5)),
-km * km / (2 * btrd_.npq))
;
@ -455,8 +455,8 @@ namespace sprout {
template<typename Engine>
SPROUT_CONSTEXPR sprout::random::random_result<Engine, binomial_distribution>
generate_10(Engine const& eng, RealType v, IntType k, IntType nm, RealType h, IntType nk) const {
return v <= h + (t_ + 1) * sprout::log(static_cast<RealType>(nm) / nk)
+ (k + RealType(0.5)) * sprout::log(nk * btrd_.r / (k + 1)) - fc(k) - fc(t_ - k)
return v <= h + (t_ + 1) * sprout::math::log(static_cast<RealType>(nm) / nk)
+ (k + RealType(0.5)) * sprout::math::log(nk * btrd_.r / (k + 1)) - fc(k) - fc(t_ - k)
? sprout::random::random_result<Engine, binomial_distribution>(k, eng, *this)
: generate(eng)
;
@ -465,7 +465,7 @@ namespace sprout {
SPROUT_CONSTEXPR sprout::random::random_result<Engine, binomial_distribution>
generate_9(Engine const& eng, RealType v, IntType k, IntType nm) const {
return generate_10(
eng, v, k, nm, (m_ + RealType(0.5)) * sprout::log((m_ + 1) / (btrd_.r * nm)) + fc(m_) + fc(t_ - m_), t_ - k + 1
eng, v, k, nm, (m_ + RealType(0.5)) * sprout::math::log((m_ + 1) / (btrd_.r * nm)) + fc(m_) + fc(t_ - m_), t_ - k + 1
);
}
template<typename Engine>
@ -514,7 +514,7 @@ namespace sprout {
return km <= 15
? generate_7(eng, v, k)
: generate_8(
eng, sprout::log(v), k,
eng, sprout::math::log(v), k,
(km / btrd_.npq) * (((km / RealType(3.0) + RealType(0.625)) * km + RealType(1.0) / 6) / btrd_.npq + RealType(0.5)),
-km * km / (2 * btrd_.npq))
;

4
sprout/random/geometric_distribution.hpp
View file

@ -73,7 +73,7 @@ namespace sprout {
private:
public:
static SPROUT_CONSTEXPR RealType init_log_1mp(RealType p) {
return sprout::log(1 - p);
return sprout::math::log(1 - p);
}
private:
public:
@ -83,7 +83,7 @@ namespace sprout {
template<typename Engine, typename Random>
SPROUT_CONSTEXPR sprout::random::random_result<Engine, geometric_distribution> generate_1(Random const& rnd) const {
return sprout::random::random_result<Engine, geometric_distribution>(
static_cast<IntType>(sprout::floor(sprout::log(RealType(1) - rnd.result()) / log_1mp_)),
static_cast<IntType>(sprout::floor(sprout::math::log(RealType(1) - rnd.result()) / log_1mp_)),
rnd.engine(),
*this
);

2
sprout/random/normal_distribution.hpp
View file

@ -134,7 +134,7 @@ namespace sprout {
generate_1_1(RealType r1, Random const& rnd) const {
return generate_2(
rnd.engine(), r1, rnd.result(),
sprout::sqrt(-result_type(2) * sprout::log(result_type(1) - rnd.result())), true
sprout::sqrt(-result_type(2) * sprout::math::log(result_type(1) - rnd.result())), true
);
}
template<typename Engine, typename Random>