/*!
* Computes 3 eigenvalues of every upper triangular matrix defined by the tuple of
- * \a this array, which contains 6 components.
+ * \a this array, which contains 6 components. The 6 components of tuples are expected to be stored as follow :<br>
+ * \a tuple[0] = \c matrix_XX <br>
+ * \a tuple[1] = \c matrix_YY <br>
+ * \a tuple[2] = \c matrix_ZZ <br>
+ * \a tuple[3] = \c matrix_XY <br>
+ * \a tuple[4] = \c matrix_YZ <br>
+ * \a tuple[5] = \c matrix_XZ <br>
* \return DataArrayDouble * - the new instance of DataArrayDouble containing 3
* components, whose each tuple contains the eigenvalues of the matrix of
* corresponding tuple of \a this array.
/*!
* Computes 3 eigenvectors of every upper triangular matrix defined by the tuple of
- * \a this array, which contains 6 components.
+ * \a this array, which contains 6 components. The 6 components of tuples are expected to be stored as follow :<br>
+ * \a tuple[0] = \c matrix_XX <br>
+ * \a tuple[1] = \c matrix_YY <br>
+ * \a tuple[2] = \c matrix_ZZ <br>
+ * \a tuple[3] = \c matrix_XY <br>
+ * \a tuple[4] = \c matrix_YZ <br>
+ * \a tuple[5] = \c matrix_XZ <br>
* \return DataArrayDouble * - the new instance of DataArrayDouble containing 9
* components, whose each tuple contains 3 eigenvectors of the matrix of
* corresponding tuple of \a this array.