| namespace Eigen { |
| |
| /** \page TutorialAdvancedInitialization Tutorial - Advanced initialization |
| \ingroup Tutorial |
| |
| \section TutorialMatrixArithmCommaInitializer Comma initializer |
| |
| Eigen offers a comma initializer syntax which allows to set all the coefficients |
| of any dense objects (matrix, vector, array, block, etc.) to specific values: |
| \include Tutorial_commainit_01.cpp |
| Output: \verbinclude Tutorial_commainit_01.out |
| |
| Moreover, the elements of the initialization list may themselves be Eigen expressions: |
| \include Tutorial_commainit_02.cpp |
| Output: \verbinclude Tutorial_commainit_02.out |
| |
| <span class="note">\b Side \b note: here \link CommaInitializer::finished() .finished() \endlink |
| is used to get the actual matrix object once the comma initialization |
| of our temporary submatrix is done. Note that despite the apparent complexity of such an expression, |
| Eigen's comma initializer usually compiles to very optimized code without any overhead.</span> |
| |
| |
| TODO mention using the comma initializer to fill a block xpr like m.row(i) << 1,2,3; |
| |
| TODO add more sections about Identity(), Zero(), Constant(), Random(), LinSpaced(). |
| |
| */ |
| |
| } |