not.m

a collection of M-files to study concepts in the following areas of Fuzzy-Set-Theory: Fuzzy or Multi

function [dnotA] = not(dA)
%NOT:  This function operate as a quantifier on matrix of fuzzy values
%      A, and will  returns the  membership  function  related to
%      'not A'.
%
%                            [notA] = NOT(A)
%
%      See also VERY and MORELESS. 


% FISMAT: Fuzzy Inference Systems toolbox for MATLAB
% (c) A. Lotfi, University of Queensland (Email: [e-mail])
% 13-10-93
% The program has been tested on MATLAB version 4.1, Sun workstation.

if (max(max(dA)) > 1) | (min(min(dA)) < 0)
error('Grade of membership function should not be more than one or less than zero.')
end


dnotA=ones(size(dA))-dA;