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单词 MellinTransform
释义

Mellin transform


The Mellin transformDlmfMathworldPlanetmath is an integral transformDlmfMathworld defined as follows:

F(s)=0f(t)ts-1𝑑t

Intuitively, it may be viewed as a continuousMathworldPlanetmath analogue of a power series— instead of synthetizing a functionMathworldPlanetmath by summing multiples of integerpowers, we integrate over all real powers. This transform is closelyrelated to the Laplace transformDlmfMathworldPlanetmath — if we make a change of variablest=e-r and define g by f(e-r)=g(r), then the above integralDlmfPlanetmathbecomes

F(s)=--+g(r)e-rs𝑑r,

which is a bilateral Laplace transform.

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更新时间:2025/5/4 10:58:32