function z = spos(X)
% Fuzzy set small positive from FL Smidth
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% function z = spos(X)
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% X   value from universe
% z   corresponding membership value
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% The definition is functional (continuous).
% Vector input results in vector output.
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% See also flsset

% Jantzen 940412

Centre =   40 ;
Spread =   25 ;
Slope =   2.5 ;

z = flsset(Spread, Slope, Centre, X) ;