[Tex/LaTex] derivative with respect to a vector

Question

\[
\frac{\partial f}
     {\partial
\left(
\begin{array}{l}
x \\
y \\
z
\end{array}
\right)
}
\]

gives

Can you help me to improve this by reducing the size of the denominator?

Answer 1

The psmallmatrix environment from »mathtools« could come in handy here. Partial derivatives are easier to typeset with the help of the »physics« package.

\documentclass[11pt]{article}
\usepackage[T1]{fontenc}
\usepackage{mathtools}
\usepackage{physics}

\begin{document}
  \[
    \pdv{f}{%
      \begin{psmallmatrix}
        x \\ y \\ z
      \end{psmallmatrix}
    }
  \]
\end{document}

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