Some Arithmetic Operations on Trapezoidal Fuzzy Numbers and its Application in Solving Linear Programming Problem by Simplex Algorithm

The fuzzy logic and fuzzy numbers have been applied in many fields such as operation research, differential equations, fuzzy system reliability, control theory and management sciences etc. The fuzzy logic and fuzzy numbers are widely used in engineering applications also. In this paper we first describe Trapezoidal Fuzzy Number (TrFN) with arithmetic operations and solve a linear programming problem by Trapezoidal Fuzzy Number (TrFN) using simplex algorithm.