[Tugindia] equation- how to

Sreejith Pulloor sreejithpk at gmail.com
Wed Oct 19 23:07:35 CEST 2005


seems to be simple but didnt have any success

i want to have two equations aligned (without numbes) inside a left bracket "{ "
i tried like following (please understand i dont have much experience
using latex... so might be wierd way--)

 \left\{
\begin{array}{l}
\mbox
{
\begin{equation*}
\mu (\nabla u , \nabla v) &=& (f,v)
\end{equation*}
}
\mbox
{
\begin{equation*}
(\nabla \cdot{u},q) &=& 0
\end{equation*}
}
\end{array}
\right.

it didnt work..
and i also have some questions on how to interpret some of the  error messages.
for example when i tried the above tex thrown some error message  like
following:

! Missing $ inserted.
<inserted text>
                $
l.42  \left
           \{
?

now my question is whats the meaning of
! Missing $ inserted. (what should i make it from this)
and etc..
sorry if i am being so stupid in sending these kind of silly
questions... excuse me

thanks for your help.

Sreejith



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