Hi Lyxers, I'm trying to draw commutative diagrams, which is known to be supported by the eplain macro package. The docs of eplain explain the appropriate settings to be made: all that is needed seems to be a "\input eplain" command at the beginning of my tex file. Ok, I tried to insert this line in the "Lyx/Layout/Latex Preamble", but all I end up with are lots of errors like:
"illegal unit of measure inserted..." "missing number, treated as zero" How do I fix the problem ? Best regards Sven Esmark
