Hi, Setting format long does not affect the precision of the coefficients. It affects only how it is displayed on the screen. By default the coefficients will be in double precision (64 bits). To do finite precision analysis, you can use either the fdatool or qfilt. Both are available in filterdesign toolbox. Regards Navan --- Appalayagari Sreedhar <> wrote: > Dear all, > > my problem straight away, > > i am doing recursive frequency sampling filter > design, > > in matlab i design the filter coefficients, i gave > the format long at the top and received the 15 > digits for representation after decimal point. > > does this give the precision value for how many bits > is it 64 or 32 bits i want to do finite wordlength > effects, in my project i hope u all might have > worked on this i will be expecting your valuable > suggestions, > > regds,sree. __________________________________________________ |
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