Hi everybody, The PD (Planar Diagram) notation is one of the most important concepts to define a knot or link uniquely (besides the braid notation). Unfortunately our convention on how to read the four strands meeting at a crossing is opposite to the one used in most other places: We read them in clockwise direction whereas most others do it anti-clockwise.
I've started a discussion in issue #17030 <https://github.com/sagemath/sage/issues/17030> (the ticket that introduced knot theory in Sage in 2014) to change our convention accordingly (starting from this comment <https://github.com/sagemath/sage/issues/17030#issuecomment-1429244168>). If you have objections to this, please comment there! Sebastian -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-devel/f0af53f5-6b62-4af6-82fe-0e983d7145f3n%40googlegroups.com.
