3D Graph of a General Quadratic Form
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The graph of the equation is shown for your settings of the parameters.
Contributed by: Eugenio Fuschini (March 2011)
Open content licensed under CC BY-NC-SA
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"3D Graph of a General Quadratic Form"
http://demonstrations.wolfram.com/3DGraphOfAGeneralQuadraticForm/
Wolfram Demonstrations Project
Published: March 7 2011