FourierTransform of Sign^2 ?
- To: mathgroup at smc.vnet.net
- Subject: [mg79997] FourierTransform of Sign^2 ?
- From: "Jung-Tsung Shen" <jushen at gmail.com>
- Date: Fri, 10 Aug 2007 01:52:16 -0400 (EDT)
I tried to evaluate the following Fourier Transform: FourierTransform[Sign[y] Sign[y], y, q] where Sign is the sign function. Instead of Sqrt[2 Pi]*DiracDelta[q], Mathematica (v. 5.0, Mac) gives -Sqrt[2 Pi]*DiracDelta[q] with a minus sign. Is this a bug or I am doing something wrong here? Thanks. JT