I.L.  Beilin, 
    Economic-Mathematical Modeling of the Total Costs of
Innovative Chemical Enterprise Methods of Fuzzy Set Theory,
    Journal of Engineering and Applied Sciences,
    Volume 12,Issue 19,
    2017,
    Pages 4865-4869,
    ISSN 1816-949x,
    jeasci.2017.4865.4869,
    (https://makhillpublications.co/view-article.php?doi=jeasci.2017.4865.4869)
    Abstract: Three approaches is suggested to determining the total cost of innovative chemical enterprise in the
face of uncertainty. This approach is based on the discrete fuzzy numbers gives more accurate results than
approaches based on continuous fuzzy numbers solutions through a-sections and the number of L-R-type.
Uncertainty intervals for all three solutions are the same.
    Keywords: Economic-Mathematical modeling;fuzzy sets;total costs; fixed costs;variable costs;continuous and discrete fuzzy numbers;a-section