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This library is a very basic Eiffel interface to the FFTW library. To download the code for FFTW go to http://www.fftw.org. We've only implemented the basic functionality we needed. Basically we did the real one-, two-, and three-dimensional fourier transforms. The following classes are part of this library: FFTW_MATRIX - represents matrices that are used as input and outputs of the 2D fourier transforms FFTW_3DTENSOR - a tensor that is the input and output of the 3D transform FOURIER_OPERATOR - an abstract specification for a fourier operator class FFTW_1D_FOURIER_OPERATOR - one dimensional real transform, transforms ARRAY [DOUBLE] FFTW_2D_FOURIER_OPERATOR - two dimensional real transform, transforms FFTW_MATRIX FFTW_3D_FOURIER_OPERATOR - three dimensional real transform, transforms FFTW_3DTENSOR To find out more about this library visit: http://www.grator.org The library has been tested mosly with Halstenbach compiler, but is should be real easy to get it to work with ISE. We have used this code on Solaris, Linux and Windows NT. The "test" directory contains some test classes and an Ace file for Halstenbach. Richie Bielak <email@example.com> March 10, 2000