Central Difference

The central difference for a function tabulated at equal intervals is defined by

 (1)

Higher order differences may be computed for Even and Odd powers,
 (2) (3)

See also Backward Difference, Divided Difference, Forward Difference

References

Abramowitz, M. and Stegun, C. A. (Eds.). Differences.'' §25.1 in Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables, 9th printing. New York: Dover, pp. 877-878, 1972.

© 1996-9 Eric W. Weisstein
1999-05-26