2

I am using LaTeX to create a formula, however, I have found that the placement of the number (in my case, (2)) of the formula is too close. I want to put the number at the right side.

enter image description here

This is my code:

\documentclass{article}
\usepackage[utf8]{inputenc}

\begin{document}

\begin{equation}
{C_m = (D_m_1, D_m_2, ..., D_m_k__m}), (m \in (1, j))
\end{equation}
\end{document}

\end{document}

How should I change my code?

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9
  • 3
    Please extend your sniplet to a full but minimal example that others can copy and test as is. Here there is no document class or preamble. Additionally your image does not match the code provided.
    – daleif
    May 16 at 14:12
  • 1
    The code shown can not possibly make the ouput shown, so impossible to say what to change.
    – David Carlisle
    May 16 at 14:27
  • You must get an error from D_m_1 After any error don't even look at the ouput, TeX only recovers enough to syntax check the rest of the document, not to make sensible output.
    – David Carlisle
    May 16 at 14:29
  • Is "formel" a math term I'm not familiar with, or should this be "formula"?
    – frabjous
    May 16 at 14:43
  • Sorry for that, I just updated my code
    – James
    May 16 at 14:56

2 Answers 2

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3

when I run your code on my computer, I get several error messages, due to the double subscript" (eg D_m_2). Use D_{m_2}. You write you equation {......(........} ......). First, the {....} is not necessary in this case, and the (...) should be open and closed within the {...}, Ex: {....(...)... .}

Are all the parentheses really necessary?

The code below worked for me.

\documentclass{article}
\usepackage[utf8]{inputenc}

\begin{document}
    \begin{equation}
        C_m = (D_{m_1}, D_{m_2}, ..., D_{mk_m}), (m \in (1, j))
    \end{equation}
\end{document

enter image description here

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3
  • Thanks a lot! That works!
    – James
    May 16 at 15:17
  • That doesn't change the position of the number, it just moves the formula itself slightly to the left. The OP must have been using different settings or the result was a byproduct of the code errors, as they're not getting it all the way on the right to begin with, as one would with your code, with or without the \quad.
    – frabjous
    May 16 at 15:20
  • and ... should be `\dots
    – daleif
    May 16 at 15:56
4

The reason why the number is close to the equation is that a } is missed in the input. The codes should be revised and improved in the following way.

\documentclass[runningheads]{llncs}

\begin{document}
\begin{equation}
C_m = (D_{m1}, D_{m2},\cdots, D_{mk_m}),
\end{equation}
where $m \in (1, j)$.
\end{document}

enter image description here

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