Note on "Trapezoidal approximation of fuzzy numbers"
We show by two examples that trapezoidal approximation of fuzzy number A in Grzegorzewski, Mrowka [Fuzzy Sets and Systems 153 (2005) 115-135] are not always trapezoidal. (C) 2006 Elsevier B.V. All rights reserved.
fuzzy numbers trapezoidal fuzzy number