\returns \c true if \c *this is approximately equal to \a other, within the precision * determined by \a prec. * * \sa MatrixBase::isApprox()

Swaps the content of two sparse matrices of the same type. * This is a fast operation that simply swaps the underlying pointers and parameters. */

\returns an expression of P H P^-1 where H is the matrix represented by \c *this */

Default constructor Start a series of r trials:

Constructs a uniform scaling from scale factor \a s */

\returns the number of columns (resp. rows) of the matrix if the storage order column major (resp. row major) */

\returns the number of rows of the represented matrix. */

Sets all coefficients to zero. */

* \brief Reports whether the minimization was successful * \returns \c Success if the minimization was successful, * \c NumericalIssue i

\returns true if the matrix of which *this is the LU decomposition is invertible. * * \note This method has to determine which pivots should be