On 10/02/2017 08:25 PM, Colin wrote:
Hi there, I was trying to setup an equation in lyx with cases but
seems to have a problem
Basically I wanted to use plain text on the right-hand side so I hit
Ctrl+M on the right-hand side to get back into plain text mode (I
think this is how you normally do it?). If I copy and paste the math
expression from lyx directly into this email it looks like the latex
gets copied, so it looks like this
M_{i,j}=\begin{cases}
E_{i,j} & \text{if blah}\end{cases}
If I try to compile this into pdf I get the error "Misplaced alignment
tab character &" with description
E_{i,j} &
\text{if blah}\end{cases}
I can't figure out why you would want to use a tab mark
here. If you just want an ampersand, the remedy is
simple: Just type `I\&' now. But if some right brace
up above has ended a previous alignment prematurely,
you're probably due for more error messages, and you
might try typing `S' now just to see what is salvageable.
Thanks
-Colin
You are correct about how to switch back to text mode. I just created a
new document, pasted your LaTeX into a math inset, and compiled to PDF
using pdflatex, dvipdfm and ps2pdf. The document compiled just fine with
all three methods.
Can you create a minimal document where the error occurs and include the
LyX file as an attachment to a response to the list? Also, which method
did you use to compile to PDF?
Paul
