FFT for BCC crystal Structure

[prasenjitjnu]

Hello

I am Prasenjit from India, I am a M.Sc student in Physics.
I need to apply Fast Fourier Transform ( FFT ) algorithm and implemented it in C++ program for BCC crystal structure, please help me to write the program,

With friendliness and appreciation ...

[MiiNiPaa]

http://lmgtfy.com/?q=Fast+Fourier+Transform+C%2B%2B
Do not reinvent the wheel. Use existing library implementaton. It'll save you countless hours spent in debugging and optimization.

[prasenjitjnu]

Thank you for your kind information. But it is written for Simple cubic lattice structure in need for body centered cubic structure.

[keskiverto]

Then you should fine-tune your search accordingly. There clearly are publications on the topic.