北航刘金锟老师的《智能控制》附带的完整matlab源程序！

				%Membership function
				clear all;
				close all;
				
				M=6;
				if M==1          %Guassian membership function
					x=0:0.1:10;
					y=gaussmf(x,[2 5]);
					plot(x,y,'k');
					xlabel('x');ylabel('y');
				elseif M==2      %General Bell membership function
					x=0:0.1:10;
					y=gbellmf(x,[2 4 6]);
					plot(x,y,'k');
					xlabel('x');ylabel('y');
				elseif M==3      %S membership function
					x=0:0.1:10;
					y=sigmf(x,[2 4]);
					plot(x,y,'k');
					xlabel('x');ylabel('y');
				elseif M==4      %Trapezoid membership function
					x=0:0.1:10;
					y=trapmf(x,[1 5 7 8]);
					plot(x,y,'k');
					xlabel('x');ylabel('y');
				elseif M==5      %Triangle membership function
					x=0:0.1:10;
					y=trimf(x,[3 6 8]);
					plot(x,y,'k');
					xlabel('x');ylabel('y');
				elseif M==6      %Z membership function
					x=0:0.1:10;
					y=zmf(x,[3 7]);
					plot(x,y,'k');
					xlabel('x');ylabel('y');
				end