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How to left align a set of equations.

I want to write an equation in latex , the code is :

   \begin{align*}
  \log (\sigma_{t}(X)) =&\log( \prod_{x \in X} \frac{1}{1-xt}) \\
            &= \sum_{x \in X} log(\frac{1}{1 - xt}) \\
            &= - \sum_{x \in X} log(1 - xt) \\
            &= - \sum_{x \in X} \sum_{n \geq 1} (-1)^{n+1} \frac{(- xt)^{n}}{n} \\
            &= \sum_{x \in X} \sum_{n \geq 1} \frac{x^{n}t^{n}}{n} \\
            &= \sum_{n \geq 1} \sum_{x \in X}  \frac{x^{n}}{n} t^{n} \\
            &= \sum_{n \geq 1} \frac{P_{n}(X)}{n} t^{n}
 \end{align*}

How to align left the equation ?

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marked as duplicate by Claudio Fiandrino, David Carlisle, egreg, Mico, Ian Thompson Jun 22 '12 at 14:20

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1 Answer 1

up vote 2 down vote accepted

If you just want to change the alignment of this equation, use flalign* in place of align*. If you want all equations to be left-justified try

\usepackage[fleqn]{amsmath}.

See the amsmath package documentation for details.

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