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Andrius Kulikauskas
 m a t h 4 w i s d o m  g m a i l
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 My work is in the Public Domain for all to share freely.
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 A field has an intrinsic direction.
 A line gains direction when there is a basis.
 A line relates a field with a onedimensional space.
 Orientation is related with a coordinate system.
 When you have two bases then you relate them with a linear transformation, and the determinant gives the orientation, whether it changes.
 What is the relationship between zero and the point at infinity?
