https://ch.mathworks.com/help/signal/ref/ismaxphase.html
ismaxphase - Determine whether filter is maximum phase - MATLAB
This MATLAB function returns a logical output equal to 1 if the specified filter is maximum phase.
determinewhetherfiltermaximumphase
https://nl.mathworks.com/help/signal/ref/ismaxphase.html
ismaxphase - Determine whether filter is maximum phase - MATLAB
This MATLAB function returns a logical output equal to 1 if the specified filter is maximum phase.
determinewhetherfiltermaximumphase
https://uk.mathworks.com/help/dsp/ref/dsp.allpassfilter.ismaxphase.html
ismaxphase - Verify that discrete-time filter System object is maximum phase - MATLAB
This MATLAB function returns true if the filter System object has maximum phase.
filter system