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When the rod is infinite or semi-infinite, I was taught to use Fourier transform.

But I don't know when should the full Fourier transform or sine/cosine transform be used.

how's the B.C. related to the choice of the transform ?

But I don't know when should the full Fourier transform or sine/cosine transform be used.

how's the B.C. related to the choice of the transform ?

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