How to color only a "tilde" accent on a letter?

Question

I would like to color only a "tilde" on my letters. I read how to do this with Umlauts or other accent, but for my expression it seems different I think. Here is my expression :

\widetilde{E}^w

So, is there a way to color only the tilde and not the E^w ? Someone already has implemented it?

Very similar to http://tex.stackexchange.com/questions/46701/how-to-color-just-the-vec-symbol?rq=1 — Torbjørn T., Jun 23 '14 at 09:12
@Torbjorn Yes indeed, i'm not used to the site yet to find easily the answer to my question ^^ — B_runo, Jun 23 '14 at 09:35
Updated my answer: the exponent w was not close enough to E. — Bernard, Jun 23 '14 at 09:59
@B_runo There is a special problem with skewchar. I described this in detail in the http://tex.stackexchange.com/questions/46701/how-to-color-just-the-vec-symbol because this post is closed. — wipet, Jun 23 '14 at 17:23

score 6 · Accepted Answer · answered Jun 23 '14 at 09:17

Changing color is not really supported, so you lose some metric information and a manual correction could be needed in some cases:

\documentclass{article}
\usepackage{mathtools,xcolor}

\newcommand{\colorwt}[2][2]{%
  {}\mspace{#1mu}\mathrlap{\textcolor{red}{\widetilde{\phantom{#2}}}}%
  \mspace{-#1mu}#2%
}

\begin{document}
X$\widetilde{E}^{w}$X$\widetilde{I}$X

X$\colorwt{E}^{w}$X$\colorwt{I}$X

X$\colorwt[3]{E}^{w}$X$\colorwt[3]{I}$X

X$\colorwt[2]{E}^{w}$X$\colorwt[2]{I}$X

X$\colorwt[1]{E}^{w}$X$\colorwt[1]{I}$X
\end{document}

The default value of the manual correction is 2, I have shown what's the effect when you specify a different value.

enter image description here

Bernard · Answer 2 · 2014-06-23T09:57:57.740

4

Quite simply:

 $\textcolor{red}{\widetilde{\textcolor{black}{E\,}}}²!^w $

I had to make a small correction to have a correct positioning of the accent, though.

enter image description here

edited Jun 23 '14 at 09:57

answered Jun 23 '14 at 09:06

Bernard

271,350

Przemysław Scherwentke · Answer 3 · 2014-06-23T09:06:59.433

1

Grouping does the work:

\documentclass{article}

\usepackage{color}

\begin{document}


${\color{green}\widetilde{\color{black}{E}}}^w$

\end{document}

enter image description here

edited Jun 23 '14 at 09:06

answered Jun 23 '14 at 09:01

Przemysław Scherwentke

37,268

score 0 · Answer 4 · edited Apr 13 '17 at 12:35

0

I finally found it, see the link below :

How to color over/underline, or other ways to highlight substituted expressions in proofs?

and change \overline in the newcommand by \widetilde or any accent you want.

edited Apr 13 '17 at 12:35

Community

1

answered Jun 23 '14 at 09:24

B_runo

115
4

How to color only a "tilde" accent on a letter?

4 Answers4

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