35 lines
1.1 KiB
C
35 lines
1.1 KiB
C
|
// This file is part of libigl, a simple c++ geometry processing library.
|
||
|
|
//
|
||
|
|
// Copyright (C) 2013 Alec Jacobson <alecjacobson@gmail.com>
|
||
|
|
//
|
||
|
|
// 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/.
|
||
|
|
#ifndef IGL_IS_SYMMETRIC_H
|
||
|
|
#define IGL_IS_SYMMETRIC_H
|
||
|
|
#include "igl_inline.h"
|
||
|
|
#define EIGEN_YES_I_KNOW_SPARSE_MODULE_IS_NOT_STABLE_YET
|
||
|
|
#include <Eigen/Sparse>
|
||
|
|
namespace igl
|
||
|
|
{
|
||
|
|
// Returns true if the given matrix is symmetric
|
||
|
|
// Inputs:
|
||
|
|
// A m by m matrix
|
||
|
|
// Returns true if the matrix is square and symmetric
|
||
|
|
template <typename AT>
|
||
|
|
IGL_INLINE bool is_symmetric(const Eigen::SparseMatrix<AT>& A);
|
||
|
|
// Inputs:
|
||
|
|
// epsilon threshold on L1 difference between A and A'
|
||
|
|
template <typename AT, typename epsilonT>
|
||
|
|
IGL_INLINE bool is_symmetric(const Eigen::SparseMatrix<AT>& A, const epsilonT epsilon);
|
||
|
|
template <typename DerivedA>
|
||
|
|
IGL_INLINE bool is_symmetric(
|
||
|
|
const Eigen::PlainObjectBase<DerivedA>& A);
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifndef IGL_STATIC_LIBRARY
|
||
|
|
# include "is_symmetric.cpp"
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif
|