Thread: LaTeX question

How do you align a series of equations in the center like Krizalid does in this thread?

http://www.mathhelpforum.com/math-he...opic-sums.html

I tried to duplicate the appropriate LaTeX code but don't seem to be able to. Could someone tell me what I'm doing wrong?

Code:

\begin{aligned}\int{f(x)g(x)}dx&
=f(x)+200g(x)&
=5\end{aligned}

Originally Posted by Mathstud28

How do you align a series of equations in the center like Krizalid does in this thread?

http://www.mathhelpforum.com/math-he...opic-sums.html

I tried to duplicate the appropriate LaTeX code but don't seem to be able to. Could someone tell me what I'm doing wrong?

You left out the "new line" code \\ after your &

You can also use \hfill in case you want the parts between & & to be aligned to the left.

Another command to align things is \begin{gathered} \end{gathered} :

Code:

\begin{gathered}
p \text{ is a prime.} \hfill \\
\text{In } \mathbb{Z}/p \mathbb{Z},~ \forall \overline{n},~ \overline{n}^p-\overline{n}= \prod_{k=0}^{n-1} (\overline{n}-k) \hfill \end{gathered}

Code:

\begin{gathered}
p \text{ is a prime.} \hfill \\
\text{In } \mathbb{Z}/p \mathbb{Z},~ \forall \overline{n},~ \overline{n}^p-\overline{n}= \prod_{k=0}^{n-1} (\overline{n}-k) \end{gathered}

(without \hfill)

How do I get them lined up correctly?

Code:

\begin{aligned}\int{f(x)g(x)}dx&\\
=f(x)+200g(x)&\\
=5
\end{aligned}

The &'s help you align them. Play around with them and you should be able to catch on:

Code:

\begin{aligned} 
& \int{f(x)g(x)}dx \\
&  =  f(x)+200g(x) \\ 
& = 5
\end{aligned}

__________________________________________________ ____

Code:

\begin{aligned} 
\int{f(x)g(x)}dx & = f(x)+200g(x) \\ 
& = 5
\end{aligned}

Thank you