File:Poinsot half spirals.svg
From Infogalactic: the planetary knowledge core
Size of this PNG preview of this SVG file: 375 × 375 pixels. Other resolution: 240 × 240 pixels.
Original file (SVG file, nominally 375 × 375 pixels, file size: 30 KB)
Summary
Three different Poinsot spirals, which satisfy the equation b = r cosh(θ/k) where k is a positive real number. The green, cyan and blue curves correspond to k=1.0, 3.0 and 6,0, respectively. These are half-spirals, since only positive values of θ are plotted; the negative values would give the mirror image about the x-axis (i.e., the horizontal).
Licensing
Lua error in package.lua at line 80: module 'strict' not found.
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 14:09, 8 January 2017 | | 375 × 375 (30 KB) | 127.0.0.1 (talk) | Three different Poinsot spirals, which satisfy the equation <i>b</i> = <i>r</i> cosh(θ/<i>k</i>) where <i>k</i> is a positive real number. The green, cyan and blue curves correspond to <i>k</i>=1.0, 3.0 and 6,0, respectively. These are half-spirals, since only positive values of θ are plotted; the negative values would give the mirror image about the <i>x</i>-axis (i.e., the horizontal). |
- You cannot overwrite this file.
File usage
The following page links to this file:
