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→Stage Two: Fixed-Shift Process: early exit conditions |
→Stage Three: Variable-Shift Process: Initialization |
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==== Stage Three: Variable-Shift Process ====
The <math>H^{(\lambda+1)}(
:<math>s_L=t_L=s- \frac{P(s)}{\bar H^{(\lambda)}(s)}</math>
being the last root estimate of the second stage and
:<math>s_{\lambda+1}=s_\lambda- \frac{P(s_\lambda)}{\bar H^{(\lambda+1)}(s_\lambda)}, \quad \lambda=L,L+1,\dots,</math>
:where <math>\bar H^{(\lambda+1)}(z)</math> is the normalized ''H'' polynomial, that is <math>H^{(\lambda)}(z)</math> divided by its leading coefficient.
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