How do i use Isosurface by FFT-Function?

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Yu Tian
Yu Tian il 9 Nov 2018
I have a 100x100x100 Matrix, and i need to use FFTN on it, then plot the FFTN-funkction with isosurface.
A is a 100x100x100 Matrix. When i do isosurfe(abs(fftn(A))), im getting a wired triangle thing.
How should i do it correctly?
Many thx.

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