Whitman wrote:
I just begun to use lyx for days and when i was trying to input a math
equation like this(base on the IEEtrans template),
-----------------------------------------------
$f(x)=\begin{cases}
1 & x>0\\
0 & x<0\end{cases}$
------------------------------------------------
it supposed to looked like this:
http://www.nabble.com/file/p16918124/Fx.png
after compiling i'm always getting this error:
http://www.nabble.com/file/p16918124/Error.png
and when I copy the same equation above to a new empty Lyx file, and
unbelievablely it passed !!!
if I deleted the equation in the IEEEtrans Lyx-doc, it can also be correctly
compiled!
It means I can't write such an equation in a Lyx file that's based on a
template but must creat a new empty file to reedit and reconfigure, that's
really baffling ! (Is it a bug or sth else???)
sb could give a hand ? thx.
Using the IEEETran template, you need to go to Document -> Settings...
-> Math Options and check either "Use AMS math package" or "Use AMS math
package automatically". For whatever reason, the "automatically" option
is on by default when you start a new document and set the class to
"article (IEEEtran)" but is off when you use the template. I'm not sure
if I'd call it a bug, but it might be a good idea for the developers to
switch AMS on in the template.
/Paul
