File:Poinsot Half Spirals.svg
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 01:42, 21 August 2008 | 375 × 375 (30 KB) | WillowW | {{Information |Description=Improved version of GnuPlot image with Inkscape. |Source=self-made |Date=20 August 2008 |Author=WillowW |Permission= |other_versions= }} | |
23:38, 12 August 2008 | 500 × 450 (24 KB) | WillowW | {{Information |Description={{en|1=Three different Poinsot spirals, which satisfy the equation ''b'' = ''r'' cosh(θ/''k''). The black, red and blue curves correspond to ''k''=1.0, 3.0 and 6,0, respectively. These are half-spirals, since only positive va |
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