Journal title
SIAM Review
Volume
abs/1911.09988
Last updated
2024-04-08T21:12:10.253+01:00
Abstract
Vandermonde matrices are exponentially ill-conditioned, rendering the
familiar "polyval(polyfit)" algorithm for polynomial interpolation and
least-squares fitting ineffective at higher degrees. We show that Arnoldi
orthogonalization fixes the problem.
familiar "polyval(polyfit)" algorithm for polynomial interpolation and
least-squares fitting ineffective at higher degrees. We show that Arnoldi
orthogonalization fixes the problem.
Symplectic ID
1075147
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