error message with figure wrap float

2013-11-09 Thread Matthias Schmidt
Hello! After I inserted a figure wrap float in my document I got an error message. When I insert an "normal" float figure, I don't get this error message. What do I have to do? The message is: {\begin {wrapfigure}{o}{0.5\columnwidth }\includegraphics [width=0.5\textwidth \ETC. ! Paragraph end

Trick using the mhchem package

2013-11-09 Thread Karl Linek
Hello, in chemical equations one sometimes want to write that a substance goes away into the air. Commonly an uprising arrow after the molecule is used to indicate that. With the mhchem package you have to use the ^ for this purpose. But in the math-mode in LyX this is used to upraise a character.