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Math-WalshTransform-1.17.tar.gz

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Filename:Math-WalshTransform-1.17.tar.gz

/Math-WalshTransform-1.17/README

                       Math::WalshTransform.pm

These routines implement fast Hadamard and Walsh Transforms and their
inverse transforms.

Also included are routines for converting a Hadamard to a Walsh
transform and vice versa, for calculating the Logical Convolution
of two lists, or the Logical Autocorrelation of a list, and for
calculating the Walsh Power Spectrum - in short, almost everything
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/Math-WalshTransform-1.17/Changes

20021019 Math-WalshTransform-1.00 Hadamard and Walsh Transforms and Inverses
20040809 'perl Install' works better on solaris without Term::Size
20041211 1.01 big performance improvement in convolution, O(N^2) -> O(NlogN)
20041215 1.02 test.pl has use not require, for invocation from other dirs
20050111 1.10 xs in transform subs brings 30x more speed !  Install dropped
20060410 1.11 xs is size, pro
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