A new method for dual fully fuzzy linear system with trapezoidal fuzzy numbers by QR decomposition

Abstract

In this paper, we will discuss a new methods to solve dual fully linear system of the form {equation presented}, where à and C are fuzzy matrices consisting of positive trapezoidal fuzzy numbers. The unknown vector X is consisting of n positive trapezoidal fuzzy numbers and the constant b and d are vectors consisting of n positive trapezoidal fuzzy numbers, using QR decomposition method. Finally, we will illustrate our method by some example.