Question: Exercise: By using Lagrange interpolation method, find the value of expansion ratio corresponding to weight of 5.5 lb. within a tensile test readings tabulated as

Exercise: By using Lagrange interpolation method, find the value of expansion ratio corresponding to weight of 5.5 lb. within a tensile test readings tabulated as follows Weight (lb.) Expansion ration 2.4 0.101 5.1 0.128 7.0 0.241 8.5 0.403 9.7 0.677

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