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Figure 2: Pictorial representation of membership value μ (li) and relative distance li (cm) [= (di − d0)] for the distance (a) 5, (b) 10, (c) 15, (d) 20, (e) 25, and (f) 30 cm. Here, ◊ is lower bound and ƒ¢ is upper bound

Figure 2: Pictorial representation of membership value μ (li) and relative distance li (cm) [= (di − d0)] for the distance (a) 5, (b) 10, (c) 15, (d) 20, (e) 25, and (f) 30 cm. Here, ◊ is lower bound and ƒ¢ is upper bound