src/matrix_vector/Matrix.hpp
explicit MatrixBase(size_type r, size_type c, value_type value0)
      : Super(S::eval(r) * S::eval(c)),
        _rows(S::eval(r)),
        _cols(S::eval(c))
    {
      set(value0);
    }
/// \brief Constructor with initializer.
/// allocates memory for a matrix of size \p r x \p c and sets all
/// entries to \p value0
\brief Constructor with initializer.
allocates memory for a matrix of size \p r x \p c and sets all
entries to \p value0
\ brief Constructor with initializer . allocates memory for a matrix of size \ p r x \ p c and sets all entries to \ p value0
explicit MatrixBase(size_type r, size_type c, value_type value0)
      : Super(S::eval(r) * S::eval(c)),
        _rows(S::eval(r)),
        _cols(S::eval(c))
    {
      set(value0);
    }
explicit MatrixBase ( size_type r , size_type c , value_type value0 ) : Super ( S :: eval ( r ) * S :: eval ( c ) ) , _rows ( S :: eval ( r ) ) , _cols ( S :: eval ( c ) ) { set ( value0 ) ; }
\brief Constructor with initializer.
\ brief Constructor with initializer .