[Tex/LaTex] Vectors and indices

spacingsuperscriptsvector

I'm trying to write a vector, r, which is raised to the power two.
Currently this is what I'm using

$\vec{r}_{i}^{2}$

but the vector arrow and power of two are overlapping. Is there anyway I could change the spacing in the power, or should I do it another way?

Best Answer

i nearly always agree with david, but i think a little less space is called for:

\documentclass{article}
\usepackage{amsmath}
\begin{document}

\[
\vec{r}_{i}^{2}
\quad
{\vec{r}_{i}}^{\,2}
\]

\end{document}

output of example code

Related Solutions

[Tex/LaTex] Conventions for typesetting complex vectors and vectors with complex components

To answer your question: there is no single answer. Even at our Mathematics department, for the first grade students, there are two professors of linear algebra, one uses $\bm{v}$ (bold math from bm package), the other one uses $\vec{v}$ .

I would not use bar for complex numbers, because $\bar{z}$ often denotes the conjugate of $z$ . I think that you should always make clear in the text whether you are real or complex.

Generally: In my opinion, you can use whichever notation you want, as far as you use it consistently in the whole work, and make clear (in Table of Notations in the Preface, or in the Introduction) what notation you use.

[Tex/LaTex] Power indices on the left side

You can use the command \prescript of the maththools package.

See the following minimal working example:

\documentclass{article}

\usepackage{mathtools}

\begin{document}

\begin{equation*}
    \prescript{2}{}{K}
\end{equation*}

\end{document}

Best Answer

Related Solutions

[Tex/LaTex] Conventions for typesetting complex vectors and vectors with complex components

[Tex/LaTex] Power indices on the left side

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