Euclidean geometry - Wikipedia, the free encyclopedia
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Euclidean geometry is a mathematical system attributed to the Greek mathematician Euclid of Alexandria. Euclid's Elements is the earliest known systematic discussion of geometry. It has been one of...
en.wikipedia.org/wiki/Euclidean_geometry
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Saccheri then studied the hypothesis of the acute angle and derived many theorems of non-Euclidean geometry without realising what he was doing. However he eventually 'proved' that the hypothesis of the acute angle led to a contradiction by assuming that there is a 'point at infinity' which lies on a plane.
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www-history.mcs.st-and.ac.uk/HistTopics/Non-Euclidean_g...
www-history.mcs.st-and.ac.uk/HistTopics/Non-Euclidean_geometry.html
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; 3: What is Non-Euclidean Geometry ... 1.2 Non-Euclidean Geometry: ... non-Euclidean geometry is any geometry that is different from Euclidean geometry. Each Non-Euclidean geometry is a consistent system of definitions, assumptions, and proofs that describe such objects as points, lines and planes.
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www.cs.unm.edu/~joel/NonEuclid/noneuclidean.html
www.cs.unm.edu/~joel/NonEuclid/noneuclidean.html
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Name · Last modified · Size · Description. [DIR], Parent Directory, -. [IMG], 180.gif, 16-Feb-2007 08:58, 1.5K. [IMG], DiskAngle.gif, 16-Feb-2007 08:58 ...
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www.cs.unm.edu/~joel/NonEuclid/
www.cs.unm.edu/~joel/NonEuclid/
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The "flat" geometry of everyday intuition is called Euclidean geometry (or parabolic geometry), and the non-Euclidean geometries are called hyperbolic ...
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mathworld.wolfram.com/Non-EuclideanGeometry.html
mathworld.wolfram.com/Non-EuclideanGeometry.html
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To understand the concept of non-Euclidian geometry, you must break free of your pre-conceived ideas of plane geometry. Not all triangles are drawn on flat surfaces. NonEuclidian geometries simply take into account a different space.
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kevingong.com/Math/NonEuclidianGeometry.pdf
kevingong.com/Math/NonEuclidianGeometry.pdf
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I have recently been studying Euclid (the "father" of geometry), and was amazed to find out about the existence of a non-Euclidean geometry. Being as curious as I am, I would like to know about non-Euclidean geometry.
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www.math.toronto.edu/mathnet/questionCorner/noneucgeom....
www.math.toronto.edu/mathnet/questionCorner/noneucgeom.html
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This ranges from barely being able to knock out a sentence to a foggy sense of reason to a grasp of formal logic to an awareness of non-Euclidian geometry.
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www.positiveatheism.org/mail/eml8602.htm
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NON - EUCLIDEAN GEOMETRY RESOURCES ... Non-Euclidean Geometry links ... Further Non-Euclidean Geometry...
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www.scit.wlv.ac.uk/~cm1993/maths/mm2217/neg.htm
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