*Chung-Hua Wu*

*naca-tn-2214*

*Nov 1950*

General differentiation formulas for successive derivatives of a function are obtained in terms of the values of the function at unequally spaced arguments and the corresponding distances between the successive arguments using Lagrangian polynomials of various degrees. The remainder term is also obtained.

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http://naca.central.cranfield.ac.uk/reports/1950/naca-tn-2214.pdf