% Illustration of fuzzy operations% J.-S. Roger Jangx = (0:1:100)';A = gbell_mf(x, [20, 4, 40]);B = gauss_mf(x, [70, 20]);subplot(221); plot(x, A, x, B);set(gca, 'xticklabels', []);axis([-inf inf 0 1.2]);title('(a) Fuzzy Sets A and B');text(40, 1.1, 'A');text(70, 1.1, 'B');subplot(222); plot(x, 1-A);set(gca, 'xticklabels', []);axis([-inf inf 0 1.2]);title('(b) Fuzzy Set "not A"');subplot(223); plot(x, max(A,B));set(gca, 'xticklabels', []);axis([-inf inf 0 1.2]);title('(c) Fuzzy Set "A OR B"');subplot(224); plot(x, min(A,B));set(gca, 'xticklabels', []);axis([-inf inf 0 1.2]);title('(d) Fuzzy Set "A AND B"');