fuz_add.m

FISMAT accommodates different arithmetic operators, fuzzification and defuzzification algorithm, imp

function f = fuz_add(f1,f2)

% f = fuz_add(f1,f2)
%
% Extended addition of fuzzy intervals/numbers. (LR-representation).
%
% f = [xmin xmax m n alpha beta] 
%   = [xmin, xmax, m1+m2, n1+n2, alpha1+alpha2, beta1+beta2]
%
% FSTB - Fuzzy Systems Toolbox for MATLAB
% Copyright (c) 1993-1996 by Olaf Wolkenhauer
% Control Systems Centre at UMIST
% Manchester M60 1QD, UK
%
% 8-Feb-1994

m1 = f1(3); m2 = f2(3); 
n1 = f1(4); n2 = f2(4);
alpha1 = f1(5); beta1 = f1(6);
alpha2 = f2(5); beta2 = f2(6);

f(1) = f1(1); f(2) = f1(2);   
f(3) = m1+m2; f(4) = n1+n2; f(5) = alpha1+alpha2; f(6) = beta1+beta2;