matrix.hpp File Reference

Matrix utility functions. More...

#include <core/core.hpp>
#include <utils/tensorarray.hpp>

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Namespaces
namespace	iganet
namespace	iganet::utils

Functions
torch::Tensor	iganet::utils::to_sparseCsrTensor (const torch::Tensor &col_indices, const torch::Tensor &values, const torch::IntArrayRef &size)
	Constructs a sparse-CSR matrix from the column indices, matrix values and the matrix size.
template<std::size_t N>
torch::Tensor	iganet::utils::to_sparseCsrTensor (const utils::TensorArray< N > &col_indices, const std::array< int64_t, N > &nbasfuncs, const torch::Tensor &values, const torch::IntArrayRef &size)
	Constructs a sparse-CSR matrix from the column indices, matrix values and the matrix size.
template<std::size_t N>
torch::Tensor	iganet::utils::to_sparseCsrTensor (const utils::TensorArray< N > &knot_indices, const std::array< short, N > &degrees, const std::array< int64_t, N > &nbasfuncs, const torch::Tensor &values, const torch::IntArrayRef &size)
	Constructs a sparse-CSR matrix from the B-spline basis function values evaluated at discrete points (e.g., the Greville abscissae), the corresponding knot_indices (i.e. the list of knot indices that mark the start of the knot span the discrete points fall into), the B-spline degrees and the matrix size.

Detailed Description

Matrix utility functions.

Author

Matthias Moller

Copyright

This file is part of the IgANet project

This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0. If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.