目录
ifft
Syntax
Description
ifft
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Inverse fast Fourier transform
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Syntax
X = ifft(Y)
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X = ifft(Y,n)
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X = ifft(Y,n,dim)
X = ifft(___,symflag)
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Description
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X = ifft(Y)
X = ifft(Y) computes the inverse discrete Fourier transform of Y using a fast Fourier transform algorithm. X is the same size as Y.
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本想翻译一下的,但是手册里面的英文描述的太清晰了,单词也很简单,所以就这样直接看吧。
X = ifft(Y,n) returns the n-point inverse Fourier transform of Y by padding Y with trailing zeros to length n.
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X = ifft(Y,n,dim) returns the inverse Fourier transform along the dimension dim. For example, if Y is a matrix, then ifft(Y,n,2) returns the n-point inverse transform of each row.
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X = ifft(Y,n,dim)沿维度dim返回逆傅立叶变换。 例如,如果Y是矩阵,则ifft(Y,n,2)返回每行的n点逆变换。
X = ifft(___,symflag) specifies the symmetry of Y. For example, ifft(Y,'symmetric') treats Y as conjugate symmetric.
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X = ifft(___,symflag)指定Y的对称性。例如,ifft(Y,'symmetric')将Y视为共轭对称。
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