Octave Library FFT

[banerjee]

I need to write a C/C++ program that needs to do FFT and I'd like to write
it by taking advantage of the Octave libraries (libcruft.a, liboctave.a,
and liboctinterp.a). How can I find out all of the following?

1. Which library must I link with?
2. Which include files do I need? 
3. Syntax of the FFT function (an inverse FFT as well)?

Any example code would also be useful. I have browsed some Octave
documentation, but it all refers to the "Matlab" part of Octave and not
the functions, data types, etc., provided by the Octave libraries.

Thanks.


Kosh Banerjee

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