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单词
wallis formulas
释义
Wallis formulas
Wallis formulas
[
′wäl·əs ‚fȯr·myə·ləz
]
(mathematics)
Formulas that determine the values of the definite integrals from 0 to π/2 of the functions sin
n
(
x
), cos
n
(
x
), and cos
m
(
x
) sin
n
(
x
) for positive integers
m
and
n
. Also known as Wallis theorem.
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更新时间:2025/2/28 19:59:13