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// SPDX-License-Identifier: Apache-2.0
//
// Copyright 2008-2016 Conrad Sanderson (http://conradsanderson.id.au)
// Copyright 2008-2016 National ICT Australia (NICTA)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// ------------------------------------------------------------------------
namespace newarp
{
template<typename eT, int SelectionRule, typename OpType>
inline
void
SymEigsShiftSolver<eT, SelectionRule, OpType>::sort_ritzpair()
{
arma_extra_debug_sigprint();
// First transform back the Ritz values, and then sort
for(uword i = 0; i < this->nev; i++)
{
this->ritz_val(i) = eT(1.0) / this->ritz_val(i) + sigma;
}
SymEigsSolver<eT, SelectionRule, OpType>::sort_ritzpair();
}
template<typename eT, int SelectionRule, typename OpType>
inline
SymEigsShiftSolver<eT, SelectionRule, OpType>::SymEigsShiftSolver(const OpType& op_, uword nev_, uword ncv_, const eT sigma_)
: SymEigsSolver<eT, SelectionRule, OpType>::SymEigsSolver(op_, nev_, ncv_)
, sigma(sigma_)
{
arma_extra_debug_sigprint();
}
} // namespace newarp
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