For a nonsingular lower or upper triangular square matrix $A$, how to solve such linear system in Eigen:
$$A x = b$$
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asked Feb 10, 2014 at 9:00
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1 Answer
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As documented here:
x = A.triangularView<Upper>().solve(b);
or
x = A.triangularView<Lower>().solve(b);
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$\begingroup$ thank you for answering so many of my
Eigenrelated questions! $\endgroup$ Commented Feb 10, 2014 at 9:49