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Abstract Abstract Fuzzy Linear Programming (FLP) handles vague and imprecise information but not always efficiently. However, the concept of neutrosophic set theory which is presented by smarandache handles vague, imprecise information more efficiently. In this thesis, the comparison between the fuzzy approach and neutrosophic approach is proposed. Five contributions are proposed in this thesis. The first contribution is proposing a new neutrosophic exterior point simplex algorithm NEPSA. It has two ways to get optimal solutions. One way consists of non feasible solutions but the other way has feasible solutions. The second contribution is proposing a dual version of cosine simplex algorithm (DCA) for solving linear programming problems with fuzzy & neutrosophic numbers. The third contribution is proposing a new algorithm which solves linear programming problems with fuzzy numbers (Fuzzy Cosine Simplex Algorithm (FCSA)). We develop this algorithm in order to solve linear programming with neutrosophic numbers (Neutrosophic Cosine Simplex Algorithm (NCSA)). The fourth contribution is proposing a novel approach which transfers the fuzzy numbers representation to corresponding neutrosophic number representation. The fifth and last contribution is proposing a general framework to solve neutrosophic linear programming problems by combining the contributions of Abdel-Basset et.al [3] and Singh et.al [72] to transfer neutrosophic numbers to crisp numbers. |