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Справка Scilab >> Функции для совместимости > mtlb_fftshift

mtlb_fftshift

Matlab fftshift emulation function

Description

Matlab and Scilab fftshift behave differently in some particular cases:

  • With character string input: due to the fact that character strings are not considered in the same way in Matlab and Scilab, results can be different for this kind of input.

  • With two inputs: Matlab fftshift can work even if dim parameter is greater than number of dimensions of first input.

The function mtlb_fftshift(A[,dim]) is used by mfile2sci to replace fftshift(A[,dim]) when it was not possible to know what were the inputs while porting Matlab code to Scilab. This function will determine the correct semantic at run time. If you want to have a more efficient code it is possible to replace mtlb_fftshift calls:

  • If A is not a character string matrix, mtlb_fftshift(A) may be replaced by fftshift(A)

  • If A is not a character string matrix and dim is not greater than size(size(a),"*"), mtlb_fftshift(A,dim) may be replaced by fftshift(A,dim)

Caution: mtlb_fftshift has not to be used for hand coded functions.

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<< mtlb_fft Функции для совместимости mtlb_find >>

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Last updated:
Tue Feb 14 15:13:37 CET 2017