geometry[Polar] - find the polar of a given point with respect to a given conic or a given circle
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Calling Sequence
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Polar(l, P, c)
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Parameters
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l
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the name of the polar
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A
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point
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e
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conic or circle
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Description
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Let be a fixed circle, and let P be any ordinary point other than O. Let P' be the inverse of P in circle c. Then the line p through P' and perpendicular to OPP' is called the polar of P for the circle c. Since the package does not work with the extended plane, the routine does not find the polar of center O or of the ideal point.
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If the point lies on the conic then the polar of P is the tangent line of the conic at that point.
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For a detailed description of the polar of P, use the routine detail
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The command with(geometry,Polar) allows the use of the abbreviated form of this command.
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Examples
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Download Help Document
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