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| template<typename T , typename DerivedI , typename DerivedJ , typename DerivedV >  | 
| void  | igl::find (const Eigen::SparseMatrix< T > &X, Eigen::DenseBase< DerivedI > &I, Eigen::DenseBase< DerivedJ > &J, Eigen::DenseBase< DerivedV > &V) | 
|   | Find the non-zero entries and there respective indices in a sparse matrix.  
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| template<typename T >  | 
| std::vector< Eigen::Triplet< T > >  | igl::find (const Eigen::SparseMatrix< T > &X) | 
|   | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.  
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| template<typename DerivedX , typename DerivedI , typename DerivedJ , typename DerivedV >  | 
| void  | igl::find (const Eigen::DenseBase< DerivedX > &X, Eigen::PlainObjectBase< DerivedI > &I, Eigen::PlainObjectBase< DerivedJ > &J, Eigen::PlainObjectBase< DerivedV > &V) | 
|   | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.  
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| template<typename DerivedX , typename DerivedI >  | 
| void  | igl::find (const Eigen::DenseBase< DerivedX > &X, Eigen::PlainObjectBase< DerivedI > &I) | 
|   | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.  
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| template<typename T >  | 
| void  | igl::find (const Eigen::SparseVector< T > &X, Eigen::Matrix< int, Eigen::Dynamic, 1 > &I, Eigen::Matrix< T, Eigen::Dynamic, 1 > &V) | 
|   | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.  
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| template<int RowsAtCompileTime, int MaxRowsAtCompileTime>  | 
| std::vector< int >  | igl::find (const Eigen::Array< bool, RowsAtCompileTime, 1, 0, MaxRowsAtCompileTime, 1 > &M) | 
|   | This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.  
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