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Re: SQL Trees

From: Mikito Harakiri <mikharakiri_at_iahu.com>
Date: Mon, 7 Jun 2004 09:43:02 -0700
Message-ID: <z51xc.25$7o2.178@news.oracle.com>


"Vadim Tropashko" <vadimtro_at_yho.cm> wrote in message news:ppnwc.4$_a1.87_at_news.oracle.com...
> ... Materialized path encoding and Farey/Continued Fractions/Moebius
> transformations/Orthogonal 2x2 matrices. ...

-----------------^^^^^^^^^^^

They are not orthogonal. The inverse of Matrix(2,2,[[5,1],[1,0]]), for example, is Matrix(2,2,[[0,1],[1,-5]]) which is not transpose. Received on Mon Jun 07 2004 - 11:43:02 CDT

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