Default constructor: represents black (``r, g, b, a = 0``)

Return a const pointer to the referenced object

\returns the number of coefficients, which is \a rows()*cols(). * \sa rows(), cols(). */

Return the height of the represented texture

Removes all non zeros */

\returns an expression of the coefficient-wise square root of *this. * * Example: \include Cwise_sqrt.cpp * Output: \verbinclude Cwise_sqrt.o

The Linux/x86_64 single precision implementations of 'exp' and 'log' suffer from a serious performance regression. It is about 5x faster to us

\brief Reports whether previous computation was successful. * * \returns \c Success if computation was succesful, * \c N

\brief Returns an expression of the tridiagonal matrix T in the decomposition * * \returns expression object representing the matrix T

\returns a read-only expression of the linear part of the transformation */

State setting