InverseFourierCosTransform

InverseFourierCosTransform[expr,ω,t]

给出 expr 的符号傅立叶余弦逆变换.

InverseFourierCosTransform[expr,{ω1,ω2,},{t1,t2,}]

给出 expr 的多维傅立叶余弦逆变换.

更多信息和选项

范例

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基本范例  (3)

范围  (5)

初等函数:

特殊函数:

广义函数:

周期函数:

多元变换:

选项  (3)

Assumptions  (1)

用假设定来指定感兴趣的参数区域:

FourierParameters  (1)

FourierParameters 的缺省设置是 {0,1}

不同定义的变换,用非缺省的转换:

GenerateConditions  (1)

当结果有效时,用 GenerateConditions->True 获得参数条件:

属性和关系  (3)

Asymptotic 计算渐近近似:

FourierCosTransformInverseFourierCosTransform 是互逆的:

对偶函数数,结果等同于 InverseFourierTransform

结果对于 ω>0 是一致的:

可能存在的问题  (1)

傅立叶余弦逆变换可能需要类似 DiracDelta 的广义函数:

Wolfram Research (1999),InverseFourierCosTransform,Wolfram 语言函数,https://reference.wolfram.com/language/ref/InverseFourierCosTransform.html.

文本

Wolfram Research (1999),InverseFourierCosTransform,Wolfram 语言函数,https://reference.wolfram.com/language/ref/InverseFourierCosTransform.html.

CMS

Wolfram 语言. 1999. "InverseFourierCosTransform." Wolfram 语言与系统参考资料中心. Wolfram Research. https://reference.wolfram.com/language/ref/InverseFourierCosTransform.html.

APA

Wolfram 语言. (1999). InverseFourierCosTransform. Wolfram 语言与系统参考资料中心. 追溯自 https://reference.wolfram.com/language/ref/InverseFourierCosTransform.html 年

BibTeX

@misc{reference.wolfram_2024_inversefouriercostransform, author="Wolfram Research", title="{InverseFourierCosTransform}", year="1999", howpublished="\url{https://reference.wolfram.com/language/ref/InverseFourierCosTransform.html}", note=[Accessed: 25-November-2024 ]}

BibLaTeX

@online{reference.wolfram_2024_inversefouriercostransform, organization={Wolfram Research}, title={InverseFourierCosTransform}, year={1999}, url={https://reference.wolfram.com/language/ref/InverseFourierCosTransform.html}, note=[Accessed: 25-November-2024 ]}