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eigen/doc/snippets/FullPivLU_image.cpp

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* fix in IO.h, a useless copy was made because of assignment from Derived to MatrixBase. * the optimization of eval() for Matrix now consists in a partial specialization of ei_eval, which returns a reference type for Matrix. No overriding of eval() in Matrix anymore. Consequence: careful, ei_eval is no longer guaranteed to give a plain matrix type! For that, use ei_plain_matrix_type, or the PlainMatrixType typedef. * so lots of changes to adapt to that everywhere. Hope this doesn't break (too much) MSVC compilation. * add code examples for the new image() stuff. * lower a bit the precision for floats in the unit tests as we were already doing some workarounds in inverse.cpp and we got some failed tests.
2008-12-18 20:36:25 +00:00
Matrix3d m;
m << 1, 1, 0, 1, 3, 2, 0, 1, 1;
cout << "Here is the matrix m:" << endl << m << endl;
cout << "Notice that the middle column is the sum of the two others, so the "
<< "columns are linearly dependent." << endl;
cout << "Here is a matrix whose columns have the same span but are linearly independent:" << endl
simplifications in the ei_solve_impl system, factor out some boilerplate code
2009-11-08 16:51:41 -05:00
<< m.fullPivLu().image(m) << endl;
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