Eigen
3.4.90 (git rev a4098ac676528a83cfb73d4d26ce1b42ec05f47c)
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Jacobi preconditioner for LeastSquaresConjugateGradient.
This class allows to approximately solve for A' A x = A' b problems assuming A' A is a diagonal matrix. In other words, this preconditioner neglects all off diagonal entries and, in Eigen's language, solves for:
Scalar_ | the type of the scalar. |
This class follows the sparse solver concept .
The diagonal entries are pre-inverted and stored into a dense vector.