慢跑鞋 发表于 2025-3-23 10:23:08
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Some Applications of Conics and Collineations in History,velop and apply mathematical formulations to physical phenomena, including the most basic principle of engineering: to balance weights .. and .. on a weightless lever when they are on opposite sides of the fulcrum, their distances from the fulcrum .. and .. must satisfy ... = .... His mathematical a分散 发表于 2025-3-23 20:10:43
Incestuous Sibling Relationships: , and , is a construction, carried out with just a straightedge and a device to construct parallel lines, following the simplest rules, that transforms one diagram into another. We call it a . because a line is always transformed to a line. We’ll soon explain the meaning of .. And how is a circle transformfringe 发表于 2025-3-24 01:06:56
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 ..cardiac-arrest 发表于 2025-3-24 02:44:19
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Family Support and Sibling Relationshipsally, for the scientific applications of conic sections. The earliest practical applications we know of are in sundials, with medieval Arabic scientists. Only in the early modern period, with Galileo (1564–1642), was the parabolic path of bodies in motion recognized. And only with Kepler (1571–1630)征服 发表于 2025-3-24 13:32:55
Sibling Relationships in the Family Context in the sixteenth century, especially the translation by Commandinus, of Urbino, in 1566. Books 5, 6, and 7 were later found in Arabic manuscripts. Book 8 seems lost, although that loss has prompted several mathematicians, over the centuries, to propose their own restorations.CULP 发表于 2025-3-24 18:50:05
The Quality of Sibling Relationshipsne is a conic section. But he immediately moved beyond Apollonius, as had Desargues, by claiming that properties established for the base circle apply to the conic section. La Hire wrote in Philippe de La Hire (., Paris, 1673, p 15), following the first seventeen lemmas, “All that follows is a simpl进步 发表于 2025-3-24 22:34:01
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