Somehow I lost the original post.

For some reason Laguerre's method doesn't converge for this polynomial.  There seem to be large regions of non-convergence. Changes of up to 1e_5 in any of the constants still fail to converge.

The point seems to oscillate in a wide range but doesn't head toward any solution.  In the implementation the initial guess is always 0j0.

I don't see why this would fail.  If anyone on this list can help, or knows someone who can help, I'd appreciate suggestions.

Henry Rich
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