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change prz to remove zero weights to avoid spurious poles #2437

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Apr 16, 2023
Merged

change prz to remove zero weights to avoid spurious poles #2437

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2 changes: 2 additions & 0 deletions prz.m
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,8 @@
% Copyright 2018 by The University of Oxford and The Chebfun Developers.
% See http://www.chebfun.org/ for Chebfun information.

ix = find(wj==0); % indices w/ zero weights; to be removed to avoid spurious poles
wj(ix) = []; fj(ix) = []; zj(ix) = [];
m = length(wj);

% Compute poles via generalized eigenvalue problem:
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