ConjugateDiameter Command

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ConjugateDiameter[ <Line>, <Conic> ]
Returns the diameter of the conic section being its conjugate diameter parallel to the line.
Example: ConjugateDiameter[-4x + 5y = -2, x^2 + 4 y^2 + 2x - 8y + 1 = 0] yields line 5x + 16y = 11
ConjugateDiameter[ <Vector>, <Conic> ]
Returns the conjugate diameter of the diameter that is parallel to the vector (relative to the conic section).
Example: Let u = (4,1) be a vector. Then ConjugateDiameter[u, x^2 + 4 y^2 + 2x - 8y + 1 = 0] yields line x + y = 0
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