[Octave-bug-tracker] [bug #51148] residue function potentially inaccurate

[Rik]

Follow-up Comment #13, bug #51148 (project octave):

No better idea at the moment, this is not really my mathematical area.

However, as a general rule Octave prefers accuracy over performance.  Once the
calculation is correct one can go back and see if there is a way to make it
faster.

Three for loops is definitely going to be slow.  The current conv() and
deconv() functions make use of filter() which is written in C++ and is quite
fast.  Is there a way to scale/normalize the pden and pm inputs to deconv so
that


pn = deconv (pden, pm);


computes correctly?



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