Default constructor without initialization */

\returns an expression of the coefficient-wise power of *this to the given exponent. * * This function computes the coefficient-wise power. The fu

Default constructor leaving the quaternion uninitialized. */

\brief Default constructor. * * \param [in] size Positive integer, size of the matrix whose QZ decomposition will be computed. *

\returns a read-only expression of the real part of \c *this. * * \sa imag() */

\brief Default constructor. * * \param [in] size Positive integer, size of the matrix whose Schur decomposition will be computed. *