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Published byCarlos Dews Modified about 1 year ago

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Projective Geometry from a historical perspective webb: Ambjörn Naeve KMR (Knowledge Management Research group) CID (Centrum för användarorienterad IT Design) NADA (Institutionen för Numerisk Analys och Datalogi) KTH (Kungliga Tekniska Högskolan)

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Alberti’s construction

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Complete quadrangle - 1

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Complete quadrangle - 2

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Complete quadrilateral - 1

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Complete quadrilateral - 2

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Elliptisk involution

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Hyperbolisk involution

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Projectified cartesian coord. syst. in 2 dim

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Projectified cartesian coords in 2 dim

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Unit-point - unit-line in P2

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Involution-1.1.

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Involution-1.2.

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Involution-1.3.

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Involution-2.1.

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Involution-2.2.

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Involution-3.1.

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Moebius-angle-cross-ratio-1

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Moebius-angle-cross-ratio-2

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Moebius-net

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Pascal’s theorem from Steiner’s theorem-1

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Pascal’s theorem from Steiner’s theorem-2

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Projective coordiates - 1

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Projective coordiates - 2

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Projective coordiates - 3

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Projective coordiates - 4

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Seydewitz sats - 1

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Seydewitz sats - 2

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Seydewitz sats - 3&4

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Självpolär Diagonaltriangel - 1

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Självpolär Diagonaltriangel - 2

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Steiner’s sats - 1

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Steiner’s sats - 2

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Steiner’s sats - 3&4

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Steiner’s sats -5

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Polaritet inducerar involution - 1

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Polaritet inducerar involution - 2

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Polaritet inducerar involution - 3

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