MathGroup Archive 1999

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Discrete Fourier Transforms


In the Mathematica Book for version 3, it states in Section 3.8.3,  with
reference to Fourier Transforms, "In electrical engineering, the sign of
the
exponent is typically reversed, leading to a list of values which is
reversed."

As the output from the Fourier Transformis symmetrical, should this be
that the values are the reciprocal?

Bill

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Dr W.W. Sampson, Department of Paper Science, UMIST,
Manchester, M60 1QD, UK. Email: w.sampson at umist.ac.uk
Phone:+44-(0)161-200-3898    Fax:+44-(0)161-200-3858.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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