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Boole's rule : ウィキペディア英語版
Boole's rule
In mathematics, Boole's rule, named after George Boole, is a method of numerical integration. It approximates an integral
: \int_^ f(x)\,dx
by using the values of ''ƒ'' at five equally spaced points
: x_1, \quad x_2 = x_1 + h, \quad x_3 = x_1 + 2h, \quad x_4 = x_1 + 3h, \quad x_5 = x_1 +4h. \,
It is expressed thus in Abramowitz and Stegun (1972, p. 886):
: \int_^ f(x)\,dx = \frac\left( 7f(x_1) + 32 f(x_2) + 12 f(x_3) + 32 f(x_4) + 7f(x_5) \right) + \text,
and the error term is
: -\,\frac h^7 f^(c)
for some number ''c'' between ''x''1 and ''x''5. (945 = 1 × 3 × 5 × 7 × 9.)
It is often known as Bode's rule, due to a typographical error that propagated; e.g. in Abramowitz and Stegun (1972, p. 886).
==See also==

* Newton-Cotes formulas
* Simpson's Rule
* Romberg's method

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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