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35 lines
1.1 KiB
35 lines
1.1 KiB
1 year ago
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// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2013 Alec Jacobson <alecjacobson@gmail.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla Public License
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// v. 2.0. If a copy of the MPL was not distributed with this file, You can
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// obtain one at http://mozilla.org/MPL/2.0/.
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#ifndef IGL_IS_SYMMETRIC_H
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#define IGL_IS_SYMMETRIC_H
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#include "igl_inline.h"
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#define EIGEN_YES_I_KNOW_SPARSE_MODULE_IS_NOT_STABLE_YET
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#include <Eigen/Sparse>
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namespace igl
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{
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/// Returns true if the given matrix is symmetric
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/// @param[in] A m by m matrix
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/// @return true if the matrix is square and symmetric
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template <typename AT>
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IGL_INLINE bool is_symmetric(const Eigen::SparseMatrix<AT>& A);
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/// \overload
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/// @param[in] epsilon threshold on L1 difference between A and A'
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template <typename AT, typename epsilonT>
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IGL_INLINE bool is_symmetric(const Eigen::SparseMatrix<AT>& A, const epsilonT epsilon);
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/// \overload
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template <typename DerivedA>
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IGL_INLINE bool is_symmetric(
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const Eigen::PlainObjectBase<DerivedA>& A);
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "is_symmetric.cpp"
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#endif
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#endif
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