%%%%%%%%%%%%%%%%%%% class: zero/private %%%%%%%%%%%%%%%%%%%% <a href="matlab:help zero/private/fromxml">zero/private/fromxml</a> - read from part of an XML tree and create a zero object. <a href="matlab:help zero/private/pfq2ri">zero/private/pfq2ri</a> - Convert frequency/Q pole/zero representation into real <a href="matlab:help zero/private/pri2fq">zero/private/pri2fq</a> - Convert comlpex pole/zero into frequency/Q pole/zero representation. <a href="matlab:help zero/private/retrieve">zero/private/retrieve</a> - zero objects with given ids from the LTPDA repository specified by the input