Eigen
3.3.9

Common base class for all classes T such that MatrixBase has an operator=(T) and a constructor MatrixBase(T).
In other words, an EigenBase object is an object that can be copied into a MatrixBase.
Besides MatrixBasederived classes, this also includes special matrix classes such as diagonal matrices, etc.
Notice that this class is trivial, it is only used to disambiguate overloaded functions.
Public Types  
typedef Eigen::Index  Index 
The interface type of indices. More...  
Public Member Functions  
Index  cols () const 
Derived &  derived () 
const Derived &  derived () const 
Index  rows () const 
Index  size () const 
typedef Eigen::Index Eigen::EigenBase< Derived >::Index 
The interface type of indices.
To change this, #define
the preprocessor symbol EIGEN_DEFAULT_DENSE_INDEX_TYPE
.

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