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单词 Forward Difference
释义

Forward Difference

The forward difference is a Finite Difference defined by

(1)

Higher order differences are obtained by repeated operations of the forward difference operator, so
 
 (2)

In general,
(3)

where is a Binomial Coefficient.


Newton's Forward Difference Formula expresses as the sum of the th forward differences

(4)

where is the first th difference computed from the difference table.

See also Backward Difference, Central Difference, Difference Equation, Divided Difference,Reciprocal Difference


References

Abramowitz, M. and Stegun, C. A. (Eds.). Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables, 9th printing. New York: Dover, p. 877, 1972.


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更新时间:2025/2/22 16:47:07