summaryrefslogtreecommitdiffstats
path: root/src/vZ
diff options
context:
space:
mode:
Diffstat (limited to 'src/vZ')
-rw-r--r--src/vZ/RK.hpp10
1 files changed, 6 insertions, 4 deletions
diff --git a/src/vZ/RK.hpp b/src/vZ/RK.hpp
index 8964741..6a2a1e1 100644
--- a/src/vZ/RK.hpp
+++ b/src/vZ/RK.hpp
@@ -82,6 +82,7 @@ namespace vZ
k.push_back(k1);
// k2..n
+ Scalar h(this->h());
for (typename ACoefficients::const_iterator i = a.begin();
i != a.end();
++i)
@@ -92,10 +93,10 @@ namespace vZ
Scalar aij = i->at(j);
c += aij;
- y += aij*this->h()*k.at(j);
+ y += h*aij*k.at(j);
}
- k.push_back(this->f()(this->x() + c, y));
+ k.push_back(this->f()(this->x() + h*c, y));
}
return k;
@@ -106,10 +107,11 @@ namespace vZ
GenericRKIntegrator<Y>::calculateY(const KVector& k, const BCoefficients& b)
const
{
- Y y = this->y();
+ Y y(this->y());
+ Scalar h(this->h());
for (typename std::vector<Scalar>::size_type i = 0; i < k.size(); ++i) {
- y += this->h()*b.at(i)*k.at(i);
+ y += h*b.at(i)*k.at(i);
}
return y;