Some arithmetic operations on triangular intuitionistic fuzzy number and its application in solving linear programming problem by dual-simplex algorithm

  • Rahul Kar Kalyani Mahavidyalaya, Kalyani, INDIA
  • A. K. Shaw Regent Education and Research Foundation\\ Kolkata, INDIA
  • Kirti Verma Lakshmi Narain college of Technology\\ M.P, INDIA


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 Triangular Intuitionistic Fuzzy Number (TIFN) with arithmetic operations and solve a linear programming problem by Triangular Intuitionistic Fuzzy Number (TIFN) using simplex algorithm.