estimate Ax


I am estimating Ax with a sum of the sort \sigma{ u_i u_i^{T} x_i }
(for i = 1..n). I can show that as n becomes large, the sum converges
to Ax. I would also like to estimate A^{-1}x. Any ideas on how to do
this
using the iteration process.

Thanks,
--j

.

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