kindred/solver
1
0
Fork 0
Code Issues 10 Pull Requests 1 Actions Packages Projects Releases Wiki Activity

AllowRotation and size_t

Browse Source
This commit is contained in:
Aik-Siong Koh
2024-01-14 21:40:33 -07:00
committed by PaddleStroke
parent fe99ad2593
commit 85557e1fa4
285 changed files with 1854 additions and 1116 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
OndselSolver/StableBackwardDifference.cpp
View File

@@ -20,7 +20,7 @@ void StableBackwardDifference::formTaylorMatrix()
//| (t3 - t) (t3 - t) ^ 2 / 2! (t3 - t) ^ 3 / 3!| |qddd(t)| |q(t3) - q(t) |
this->instantiateTaylorMatrix();
for (int i = 0; i < order; i++)
for (size_t i = 0; i < order; i++)
{
this->formTaylorRowwithTimeNodederivative(i, i, 0);
}
@@ -32,7 +32,7 @@ double MbD::StableBackwardDifference::pvdotpv()
auto& coeffs = operatorMatrix->at(0);
auto sum = 0.0;
for (int i = 0; i < order; i++)
for (size_t i = 0; i < order; i++)
{
sum -= coeffs->at(i);
}
@@ -40,7 +40,7 @@ double MbD::StableBackwardDifference::pvdotpv()
}
FColDsptr MbD::StableBackwardDifference::derivativepresentpastpresentDerivativepastDerivative(
int, FColDsptr, std::shared_ptr<std::vector<FColDsptr>>, FColDsptr,
size_t, FColDsptr, std::shared_ptr<std::vector<FColDsptr>>, FColDsptr,
std::shared_ptr<std::vector<FColDsptr>>)
{
assert(false);
@@ -54,29 +54,29 @@ void StableBackwardDifference::instantiateTaylorMatrix()
}
}
void StableBackwardDifference::formTaylorRowwithTimeNodederivative(int i, int ii, int k)
void StableBackwardDifference::formTaylorRowwithTimeNodederivative(size_t i, size_t ii, size_t k)
{
//| rowi hi hipower aij |
auto& rowi = taylorMatrix->at(i);
if (k > 0) {
for (int j = 0; j < k - 2; j++)
for (size_t j = 0; j < k - 2; j++)
{
rowi->at(j) = 0.0;
}
rowi->at((int)k - 1) = 1.0;
rowi->at(k - 1) = 1.0;
}
auto hi = timeNodes->at(ii) - time;
auto hipower = 1.0;
for (int j = k; j < order; j++)
for (size_t j = k; j < order; j++)
{
hipower *= hi;
auto aij = hipower * OneOverFactorials->at((int)(j - k + 1));
auto aij = hipower * OneOverFactorials->at(j - k + 1);
rowi->at(j) = aij;
}
}
FColDsptr MbD::StableBackwardDifference::derivativepresentpast(int deriv, FColDsptr y, std::shared_ptr<std::vector<FColDsptr>> ypast)
FColDsptr MbD::StableBackwardDifference::derivativepresentpast(size_t deriv, FColDsptr y, std::shared_ptr<std::vector<FColDsptr>> ypast)
{
//"Answer ith derivative given present value and past values."
@@ -86,16 +86,16 @@ FColDsptr MbD::StableBackwardDifference::derivativepresentpast(int deriv, FColDs
else {
if (deriv <= order) {
auto series = std::make_shared<std::vector<FColDsptr>>(order);
for (int i = 0; i < order; i++)
for (size_t i = 0; i < order; i++)
{
series->at(i) = ypast->at(i)->minusFullColumn(y);
}
auto& coeffs = operatorMatrix->at((int)deriv - 1);
auto& coeffs = operatorMatrix->at(deriv - 1);
auto answer = coeffs->dot(series);
return std::static_pointer_cast<FullColumn<double>>(answer);
}
else {
auto ySize = (int)y->size();
auto ySize = y->size();
return std::make_shared<FullColumn<double>>(ySize, 0.0);
}
}