Install libfftw3-dev by entering the following commands in the terminal:
sudo apt update sudo apt install libfftw3-dev
Description:
Library for computing Fast Fourier Transforms - development
The FFTW library computes Fast Fourier Transforms (FFT) in one or more dimensions. It is extremely fast. This package contains the statically linked library, header files and test programs. . This package contains the header files and static libraries. For documentation, see libfftw3-doc.
Homepage: http://fftw.org
Version: 3.3.7-1
Section: libdevel