Create a command for inline math, and apply color to math output

Question

I would like to setup a command for adding inline math in text paragraphs. In that command, I want to change some style properties, like change the color of the equation. Fox example:

The value of $x = 2 + 3$ is $x=5$.

I would like to do.

 The value of \Mimath{x = 2 + 3} is \Mimath{x=5}.

I through I could start with something like this:

\newcommand*\Mimath[1]{ $ #1 $ }

But that gives an error in TexStudio:

Undefined control sequence. ...lection of objects whatsoever. A set \Mimath

How can I create that type of command?

Please write a minimal working example. See link for more details what it means. — user202729, May 10 '23 at 04:55

score 1 · Accepted Answer · answered May 10 '23 at 05:25

1

This works for me, I hope for you too:

\documentclass[12pt]{article}
\usepackage{xcolor}
\newcommand*\Mimath[2][black]{{\color{#1} $ #2 $}\color{black} }
\begin{document}
The value of    \Mimath[red]{y=x+5}
The value of    \Mimath[blue]{y=x+5}
The value of    \Mimath[magenta]{y=x+5}
The value of    \Mimath{y=x+5}
\end{document}

answered May 10 '23 at 05:25

miltos

2,605

2

+1. I don't think that \color{black} is needed, though. – Mico May 10 '23 at 05:30
I'd use: \newcommand*\Mimath[2][black]{$\color{#1}#2$}. – 314159265358979323 May 10 '23 at 05:32
@Mico without \color{black} does not reset the color of text to black and continues the same color of math mode – miltos May 10 '23 at 05:43
Sorry, I should have written either \newcommand*\Mimath[2][black]{$\color{#1}#2$} or \newcommand*\Mimath[2][black]{{\color{#1}$#2$}}. – Mico May 10 '23 at 05:45

score 0 · Answer 2 · answered May 10 '23 at 05:27

0

You can use \everymath{\color{blue}}. Here is a minimimal working example:

\documentclass{amsart}
\usepackage{xcolor}
\everymath{\color{blue}}
\begin{document}
The value of $x = 2 + 3$ is $x=5$.
[
   \int2x,dx=x^2+C
]
\end{document}

that produces:

As the MWE shows, this colours only inline mathematics. If you want to colour displayed equations as well use \everydisplay{\color{blue}}.

answered May 10 '23 at 05:27

314159265358979323

487

Running \everydisplay{\color{blue}} can cause unexpected results, to put it mildly. Running \everydisplay=\expandafter{\the\everydisplay\color{blue}} is safer. – Mico May 10 '23 at 05:35
@Mico Really? I have not come across this. Is there a reference about this that I can look at or some examples? – 314159265358979323 May 10 '23 at 05:37
2

The issue is that \everydisplay{\color{blue}} clobbers any preexisting token list, which may have been set up by some package the user has loaded. For a practical example of what can go wrong see, e.g., Modifying \everydisplay causes the align* environment to stop working. – Mico May 10 '23 at 05:43

Create a command for inline math, and apply color to math output

2 Answers2