Simple alignment question

Question

So I want to align my 'equals' sign and inequality signs. So I have done,

   \begin{align}
   \Rightarrow d(\mathbf x',\mathbf 0) & \geq d(\mathbf x,\mathbf 0) - d(\mathbf x',\mathbf x) \\
   &=  \varepsilon + \delta - d(\mathbf x',\mathbf x)
   \end{align}

This works fine, it aligns the signs however it also centres the whole equation. I don't want it to be centred, I just want it to start from the left and move to the right as normal text should.

Any ideas?

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score 3 · Answer 1 · answered Mar 31 '14 at 11:02

Using \usepackage[fleqn]{amsmath} will left align all equations. You can use flalign environment instead.

\documentclass{article}

\usepackage{amsmath}
\usepackage{showframe}   %% just for demo

\begin{document}

\begin{flalign}
  \Rightarrow d(\mathbf x',\mathbf 0)
  &\geq d(\mathbf x,\mathbf 0) - d(\mathbf x',\mathbf x)   && \\     %% note two && at the end
  &= \varepsilon + \delta - d(\mathbf x',\mathbf x)
\end{flalign}

\end{document}

enter image description here

score 2 · Answer 2 · edited Apr 13 '17 at 12:34

Here is a possible solution:

\documentclass{article}

\usepackage[fleqn]{mathtools}
\newcommand*\Vector[1]{\mathbf{#1}}

\begin{document}

\begin{align}
  \Rightarrow
  d(\Vector{x}',\Vector{0})
  &\geq d(\Vector{x},\Vector{0}) - d(\Vector{x}',\Vector{x}) \\
  &=    \varepsilon + \delta - d(\Vector{x}',\Vector{x})
\end{align}

\end{document}

output

The best answer is definitely Harish Kumar's.

score 1 · Answer 3 · answered Mar 31 '14 at 10:35

1

Use the optional argument:

\usepackage[fleqn]{amsmath}

answered Mar 31 '14 at 10:35

Simple alignment question

3 Answers3