An LU-fuzzy calculator for the basic fuzzy calculus

Luciano Stefanini () and Laerte Sorini ()

No 701, Working Papers from University of Urbino Carlo Bo, Department of Economics, Society & Politics - Scientific Committee - L. Stefanini & G. Travaglini

Abstract: The LU-model for fuzzy numbers has been introduced in [4] and applied to fuzzy calculus in [9]; in this paper we build an LU-fuzzy calculator, in order to explain the use of the LU-fuzzy representation and to show the advantage of the parametrization. The calculator produces the basic fuzzy calculus: the arithmetic operations (scalar multiplication, addition, subtraction, multiplica- tion, division) and the fuzzy extension of many univariate functions (power with integer positive or negative exponent, exponential , logarithm, general power function with numeric or fuzzy exponent, sin, arcsin, cos, arccos, tan, arctan, square root, Gaussian and standard Gaussian functions, hyperbolic sinh, cosh, tanh and inverses, erf error function and complementary erfc error function, cu- mulative standard normal distribution). The use of the calculator is illustrated.

Keywords: Fuzzy Sets; LU-fuzzy Calculator; Fuzzy Calculus (search for similar items in EconPapers)
JEL-codes: C00 C60 C63 C88 D80 (search for similar items in EconPapers)
Pages: 31 pages
Date: 2007, Revised 2007
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