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单词 Square integrable function
释义

Square integrable function

英语百科

Square-integrable function

(重定向自Square integrable function)

In mathematics, a square-integrable function, also called a quadratically integrable function, is a real- or complex-valued measurable function for which the integral of the square of the absolute value is finite. Thus, if

then ƒ is square integrable on the real line (-\infty,+\infty). One may also speak of quadratic integrability over bounded intervals such as [0, 1].

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