Thanks Karsten.
With my poor high school French:
As a curio, my example shows different triangle vs rectangle translations. (Writer was French.)
des triangles rectangles 3D
il est possible de construire
des triangles rectangles 3D sur les deux surfaces précitées.
3D Rectangular Triangles
it is possible to build
3D rectangular triangles on the two above-mentioned surfaces.
(Originally triangles in the above sentence was omitted, so there appears to be some "learning" going on...)
(Right angle triangles via Ring Dupin Cyclides is the subject)
- Brian
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