Titlebook: Collineations and Conic Sections; An Introduction to P Christopher Baltus Book 2020 The Editor(s) (if applicable) and The Author(s), under

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Christopher BaltusGives the necessary geometry to readers of limited background.Provides reader with a general history through the mid-nineteenth century.Features a proof-based treatment

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Incestuous Sibling Relationships: , and , The collineation is . if there is a ., a point . where all lines on . are fixed, meaning the line is mapped to itself, although individual points on the line need not be fixed. We have seen that a collineation is central exactly when it has a line of fixed points, an ..

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Siblings in Childhood and Adolescence, concept appeared in the work of Desargues, although the name was first used by L. Carnot in 1803. That it produces a harmonic set was recognized by La Hire in 1685. Its dual, the ., is a different way of viewing the same figure. (In the period we cover, the figure was always called a complete quadrilateral.)

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https://doi.org/10.1057/9781137316905celet wrote in his 1822 ., Art. 446: “Although the properties of foci (.) …seem to not be among those we have called ., …they follow nevertheless in a very simple manner from foundational principles ….”

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978-3-030-46289-5The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerl