8.6 geometry

This module, written by Philippe Ivaldi, provides an extensive set of geometry routines, including perpendicular symbols and a triangle structure. Link to the documentation for the geometry module are posted here: https://asymptote.sourceforge.io/links.html, including an extensive set of examples, https://web.archive.org/web/20201130113133/http://www.piprime.fr/files/asymptote/geometry/, and an index:

https://web.archive.org/web/20201130113133/http://www.piprime.fr/files/asymptote/geometry/modules/geometry.asy.index.type.html