Chapter 5 FUZZY NUMBER Chi-Yuan Yeh
Outline Interval and Fuzzy number Operations of interval Operations of fuzzy number α-cut extension principle Triangular fuzzy number Trapezoidal fuzzy number
Interval
α-cut
α-cut
α-cut
Fuzzy number Definition: a fuzzy set A on R must posses at least the following three properties A must be a normal fuzzy set must be a closed interval for every (convex) the support of fuzzy set A, , must be bounded
Operations of Interval
Operations of Interval
Operations of Interval
Operations of Interval
Operations of Interval
Operations of Fuzzy Number α-cut Addition:
Operations of Fuzzy Number α-cut Subtraction: Multiplication: Division: Minimum: Maximum:
Operations of Fuzzy Number
Operations of Fuzzy Number α-cut α = 0.5 α = 1.0
Operations of Fuzzy Number Extension principle Addition: Subtraction: Multiplication: Division: Minimum: Maximum:
Operations of Fuzzy Number
Operations of Fuzzy Number
Operations of Fuzzy Number
Operations of Fuzzy Number
Operations of Fuzzy Number
Operations of Fuzzy Number
Operations of Fuzzy Number
Operations of Fuzzy Number
Triangular fuzzy number
Triangular fuzzy number
Triangular fuzzy number
Triangular fuzzy number
Operations of triangular fuzzy number
Operations of triangular fuzzy number
Operations of triangular fuzzy number
Operations of triangular fuzzy number
Operations of triangular fuzzy number
Operations of triangular fuzzy number
Operations of triangular fuzzy number
Operations of triangular fuzzy number
Operations of triangular fuzzy number
Operations of triangular fuzzy number
Operations of triangular fuzzy number
Operations of triangular fuzzy number
Operations of triangular fuzzy number
Operations of triangular fuzzy number
Approximation of Triangular Fuzzy Number
Approximation of Triangular Fuzzy Number
Approximation of Triangular Fuzzy Number
Operations of triangular fuzzy number
Operations of triangular fuzzy number 4
Approximation of Triangular Fuzzy Number 4
Approximation of Triangular Fuzzy Number
Trapezoidal fuzzy number
Operations of Trapezoidal Fuzzy Number
Operations of Trapezoidal Fuzzy Number
Operations of Trapezoidal Fuzzy Number
Approximation of Trapezoidal Fuzzy Number
Operations of Trapezoidal Fuzzy Number
Exercise Is B a convex fuzzy set? Is B a fuzzy number?
Exercise
Thanks for your attention!