Returns an AlignedBox that is the union of \a b and \c *this. * \note Merging with an empty box may result in a box bigger than \c *this. * \sa

\returns the max number of threads reserved for Eigen * \sa setNbThreads */

\returns the number of jacobian evaluation */

return true if both `a` and `b` are not NaN

\returns the pseudo-inverse of the matrix of which *this is the complete * orthogonal decomposition. * \warning: Do not compute \c this->pseudoI

dummy resize function

\returns the number of rows. \sa cols() */

\returns the number of columns */

returns a mask of 8-bit elements (at most 4) that are all 1's in the range [begin, begin + count) and 0 elsewhere.

Set the cpu L1 and L2 cache sizes (in bytes). * These values are use to adjust the size of the blocks * for the algorithms working per blocks. * *

functionally equivalent to _mm_shuffle_pd in SSE (i.e. shuffle(m, n, mask) equals _mm_shuffle_pd(m,n,mask)) Currently used in LU/arch/InverseSize4.h t

\returns the squared norm of the quaternion's coefficients * \sa QuaternionBase::norm(), MatrixBase::squaredNorm() */

\returns the number of sub diagonals */

\returns the number of super diagonals */

\returns an equivalent 3x3 rotation matrix. */