HL2050 wrote > > Hello, I used "\begin{subequations}" and "\end{subequations}" to have > equations in between. It worked on my two earlier research papers using > LyX 1.6 mac os snow leopard. But suddenly the same way stopped working in > a new LyX file. I just can't figure it out. No clue at all. Can anyone > help. Thanks. >
You just have to *uncheck* the box "Use AMS math package automatically" and then check "Use AMS math package" in Document -> Settings... -> Math Options. Then Apply. Worked for me in LyX 2.0.3 with "article (SPIE Proceedings)" Document Class. -- View this message in context: http://lyx.475766.n2.nabble.com/Latex-error-Environment-subequations-undefined-tp4421640p7580152.html Sent from the LyX - Users mailing list archive at Nabble.com.