Newton’s interpolating polynomials of order 1 through 4.

x=[1 2 3 5 7 8];

fx=[3 6 19 99 291 444];

Calculate f (4) using Newton’s interpolating polynomials of order 1 through 4.

[Hildo]

If you don't need the implementation code, you can use the Curve Fitting Toolbox or/and its internal functions.

[KSSV]

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