Math & Science ⇒ Trouble with split Equation and scaled Delimiters

[21did21]

Hello world


i have try to split one equation but it don't works with me

i have tried this :

\begin{equation}

Code: Select all

\begin{split} 
AAAAA=AAAAA+AAAA
\left( \\
&BBBB\left(EEEE+EEEEEEE\right)
+\left(HHH.RRRR.DDD.SSS\right)
+\left(RRRR.EEEE.ZZZZ.CCCC\right)
\right)
\end{split} 
\label{eq18}
\end{equation}

i don't understand why i don't work

ps: when we split equation how we can manage the alignement ? on the left or center

[Stefan Kottwitz]

Hi,

this doesn't work because \left and the corresponding \right have to be on the same line: you cannot use \left( on one line, and the \right) on another. On the same line it would work well, as in the example for the inner parentheses. However, for big delimiters across lines, use \big, \Big, \bigg, \Bigg or related commands instead.

Stefan

[Stefan Kottwitz]

ps: when we split equation how we can manage the alignement ? on the left or center

It's explained in the amsmath user's guide.

Stefan

[21did21]

thank you stef