[Tex/LaTex] How to change color of operators (lim, log, etc.)

colormath-operators

How can I change the color of operators like "log", "lim" or the root symbol of \sqrt command?

Best Answer

You could tap into the primitive \mathop:

\documentclass{article}
\usepackage{xcolor,amsmath}
\DeclareMathOperator{\abc}{abc}

\let\oldmathop\mathop
\def\mathop#1{\oldmathop{\textcolor{red}{#1}}}
\let\oldsurd\surd
\def\surd{\textcolor{red}{\oldsurd}}

\begin{document}
\[
  \abc d \quad
  \sin \theta \quad
  \log_e \quad
  \lim_{x \rightarrow 0} \quad
  \int_a^b \quad
  \sqrt[n]{} \quad
  \surd
\]

\end{document}

The above is not thoroughly tested though...

Related Solutions

[Tex/LaTex] How to change the background color only for the current page

You could use the \afterpage command from the afterpage package to change the color back.

Here's an example:

\documentclass{article}
\usepackage{lipsum}% for auto generating text
\usepackage{afterpage}
\usepackage{xcolor}
\begin{document}
\lipsum[1-12]
\pagecolor{yellow}\afterpage{\nopagecolor}
\lipsum[22-30]
\end{document}

[Tex/LaTex] Any way to change color of \not

Some similar command for obtaining colored \cancelto (some math package is probably missing)

\documentclass{article}
\usepackage{xcolor}
\usepackage{cancel}
\newcommand\crossout[3][black]{\renewcommand\CancelColor{\color{#1}}\cancelto{#2}{#3}}
\begin{document}
  $\crossout[red]{\infty}{a^2} +   \crossout[blue]{0}{b^2}  =   \crossout[green]{\infty}{c^2} $
\end{document}

Best Answer

Related Solutions

[Tex/LaTex] How to change the background color only for the current page

[Tex/LaTex] Any way to change color of \not

Related Question