New Descriptions of Conics via Twisted Cylinders, Focal Disks, and Directors (Q3621555)
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scientific article
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | New Descriptions of Conics via Twisted Cylinders, Focal Disks, and Directors |
scientific article |
Statements
New Descriptions of Conics via Twisted Cylinders, Focal Disks, and Directors (English)
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21 April 2009
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conic section
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twisted cylinder
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hyperboloid of revolution
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Dandelin proof
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focal property
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focal disk
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0.7787702
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0.7505573
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