i attached the toolbox here , you need to follow instructors :

Please copy the files to the directories below:



fuzblock file into C:\MATLAB6p5\toolbox\fuzzy\fuzzy

fuzzy2 directory into C:\MATLAB6p5\toolbox



and finaly you must set new path to fuzzy2 directory ( don t use pathdef.m because it is old for matlab 6.5)

As i mention , this version contain only Gaussian membership function ( i attached two functions , you can add to fuzzy2 directory )