Plücker matrix
Skew-symmetric 4 × 4 matrix, which characterizes a straight line in projective space / From Wikipedia, the free encyclopedia
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The Plücker matrix is a special skew-symmetric 4 × 4 matrix, which characterizes a straight line in projective space. The matrix is defined by 6 Plücker coordinates with 4 degrees of freedom. It is named after the German mathematician Julius Plücker.
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