fuz_mul1.m

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

function f = fuz_mul1(f1,f2)

% f=fuz_mul1(f1,f2)
%
% Multiplication of two fuzzy numbers.
% see fuz_mul() !.
% 
% f = [xmin xmax m n alpha beta]
% ymin=0 and ymax=1.
%
% fuz_mul1 is called by fuz_mul .
%
% 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); n1 = f1(4); alpha1 = f1(5); beta1 = f1(6);
m2 = f2(3); n2 = f2(4); alpha2 = f2(5); beta2 = f2(6);

f(1) = f1(1); f(2) = f1(2);                       % xmin, xmax
f(3) = m1*m2; f(4) = n1*n2;                       % m, n
f(5) = m1*alpha2+m2*alpha1-alpha1*alpha2;         % alpha
f(6) = n1*beta2+n2*beta1+beta1*beta2;             % beta