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Topic: Cross Ratio of Four Concurrent Lines
Replies: 6   Last Post: Jul 9, 2013 11:29 AM

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Narasimham

Posts: 307
Registered: 9/16/06
Cross Ratio of Four Concurrent Lines
Posted: Jun 28, 2013 6:18 AM
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Cross Ratio can be defined in projective geometry either for 4 collinear points or 4 concurrent lines.

Point P connects 4 fixed points in x-y plane. Find locus of P so that cross ratio of the four ray pencil is a positive constant.

Regards
Narasimham



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