LaTeX question

Mathstud28 · #1 $Old$ 11-08-2008, 11:31 AM

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

More telescopic sums

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?

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

Code:

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

masters · #2 $Old$ 11-08-2008, 11:46 AM

Quote:

Originally Posted by Mathstud28 $View Post$

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

More telescopic sums

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?

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

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

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

Moo · #3 $Old$ 11-08-2008, 12:10 PM

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

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) \hfill \end{gathered}

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

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)

Mathstud28 · #4 $Old$ 11-08-2008, 12:16 PM

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

How do I get them lined up correctly?

Code:

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

o_O · #5 $Old$ 11-08-2008, 12:37 PM

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

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

Code:

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

__________________________________________________ ____

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

Code:

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

Mathstud28 · #6 $Old$ 11-08-2008, 01:03 PM

$\begin{aligned}A_n&=\int{f(x)g(x)}dx\\&=f(x)+200g(x)\\&=5\\&=4+1\\&=\frac{5!}{4!}\\&=\frac{\int_0^{\infty}t^5e^{-t}dt}{\int_0^{\infty}t^4e^{-t}dt}\end{aligned}$
Thank you