FFTWallocate
FFTW::allocate is a function in the FFTW (Fastest Fourier Transform in the West) library that allocates memory for storing input and output data for a Fourier transform. It is used to allocate memory for an array of complex numbers, with each element having a real and imaginary part. The size of the array is determined by the dimensions of the input data and the desired transform. This function is typically used in conjunction with other FFTW functions to perform a Fourier transform on a given set of data
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