fuz_exp.m

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

function f = fuz_exp(f1)

% f=fuz_exp(f1)
%
% Exponential function of a (LR-) fuzzy intervalls (number). 
% (approximation)
%
% f = f1 = [xmin xmax m n alpha beta] 
%   = [xmin xmax e^m e^n e^m(1-e^-alpha) e^n(e^beta-1)]
%
% ymin=0 und ymax=1 
%
% 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
 
if fuz_sign(f1)==1; f = fuz_exp1(f1); end;    % f1 ist negativ
if fuz_sign(f1)==2; 
  f1 = fuz_sire(f1);
  f  = fuz_exp1(f1);
  f  = fuz_inv(f);
end;