19 Feb
2012
19 Feb
'12
10:54 p.m.
Le 2012-02-19 à 14:08:00, Mike Moser-Booth a écrit :
Pretty sure, though I mess that up all the time. Aren't you supposed change the signs of the feedback coefficients when z-transforming the difference equation?
Why would you change the signs of a and b but not c ?
(Was I giving the formula relative to ax²+bx+c=0 or did I assume ax²+bx=c by accident ?)
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