Transforming expressions into ellipse normal form

From: Roboy B (markieboy03_at_gmail.com)
Date: 03/22/05


Date: Tue, 22 Mar 2005 16:02:27 +1000

How to transform the expression [3x^2-2xy+3y^2] by trigonometric
method with coordinate transformation and matrix diagonalization
method?


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