Bugfix release
The range check for the cutoff frequency included Nyquist but because the filter does a pre-warp with tan(pi * fc/fs) that leads to unpredictable results. Nyquist is now excluded to prevent this.
The range check for the cutoff frequency included Nyquist but because the filter does a pre-warp with tan(pi * fc/fs) that leads to unpredictable results. Nyquist is now excluded to prevent this.