On Sun, Feb 19, 2012 at 4:54 PM, Mathieu Bouchard <ma...@artengine.ca> wrote: > 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 ?)
I think it has to do with where c is in the difference equation: c*y[n] = g*x[n] + a*y[n-1] + b*y[n-2] Julius Smith explains it better than I could: https://ccrma.stanford.edu/~jos/fp2/Z_Transform_Difference_Equations.html .mmb -- Mike Moser-Booth - mmoserbo...@gmail.com Master's Student in Music Technology Schulich School of Music, McGill University Centre for Interdisciplinary Research in Music Media and Technology "If you think education is expensive, try ignorance" -Derek Bok _______________________________________________ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
