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单词
shifting theorem
释义
shifting theorem
shifting theorem
[
′shift·iŋ ‚thir·əm
]
(mathematics)
If the Fourier transform of ƒ(
t
) is
F
(
x
), then the Fourier transform of ƒ(
t
-
a
) is exp (
iax
)
F
(
x
).
If the Laplace transform of ƒ(
x
) is
F
(
y
), then the Laplace transform of ƒ(
x
-
a
) is exp (-
ay
)
F
(
y
).
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更新时间:2026/4/22 2:25:50