Central Difference
The central difference for a function tabulated at equal intervals 
is defined by
 | (1) |
 |  |  | (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.
- Weber Functions
- Weber's Discontinuous Integrals
- Weber's Formula
- Weber-Sonine Formula
- Weber's Theorem
- Web Graph
- Wedderburn's Theorem
- Weddle's Rule
- Wedge
- Wedge Product
- Weekday
- Weibull Distribution
- Weierstrass M-Test
- Weierstraß Approximation Theorem
- Weierstraß-Casorati Theorem
- Weierstraß Constant
- Weierstraß Elliptic Function
- Weierstraß-Erdman Corner Condition
- Weierstraß Extreme Value Theorem
- Weierstraß Form
- Weierstraß Function
- Weierstraß Intermediate Value Theorem
- Weierstraß Point
- Weierstraß Product Inequality
- Weierstraß's Gap Theorem