Edit: how to colour an edited formula

[mcastillo356]

TL;DR Summary

I've needed to edit a formula, and wanted to colour it. No way. LaTeX command "\color{red}" doesn't work. Whch should be the typing?

Hi PF
How to colour the edited formula?
Greetings!

 

[robphy]

In what application?
\vec F_{net}=m\vec a
... but this seems tedious to do for specific items in an equation.
Quote this post to see the tags COLOR tags surrounding the tex tags.

You could use \bf ...
\bf \vec F_{net}=m\vec a
or \Large
\Large \vec F_{net}=m\vec a

 

[mcastillo356]

In what application?
\vec F_{net}=m\vec a
... but this seems tedious to do for specific items in an equation.
Quote this post to see the tags COLOR tags surrounding the tex tags.

You could use \bf ...
\bf \vec F_{net}=m\vec a
or \Large
\Large \vec F_{net}=m\vec a

Fine. I'll give a try... Suppose I want to colour only ma in F=ma in this sentence: "The formula $\vec F=m\vec a$ is one of the most importants in physics", written inside a paragraph... How?
Thanks!

 

[robphy]

Indeed, \vec F=m\vec a is an important equation.

[CODE title="LaTeX in color on PF"]\vec F=m\vec a[/CODE]

 

[mcastillo356]

Hi, @robphy , PF
What about if the LaTeX inside a sentence is

\dfrac{|f(u)-f(v)|}{|u-v|}=\dfrac{||u|-|v||}{|u-v|}\leq 1

and I want to colour
\dfrac{||u|-|v||}{|u-v|}

 

[robphy]

Unfortunately, it seems like one would have to break up the sentence into two LaTeX parts
in order to colorize that part.

I'm not sure if
http://docs.mathjax.org/en/latest/input/tex/extensions/color.html
is being used.

 

[mcastillo356]

A little bit mind-blowing, I will take it easy, ie, read and write down #2

Love

 

[pbuk]

Experimenting:

V3 ${ \color{red} x } + { \color{blue} y }$

V2 $\color{red}{x} + \color{blue}{y}$

$$ \color{red}{x} + \color{blue}{y} $$

 

[pbuk]

See https://www.physicsforums.com/threads/latex-colorv2-extension.1012183/

Once this is fixed, $\dfrac {|f(u)-f(v)|} {|u-v|} = \color{red} {\dfrac {||u|-|v||} {|u-v|} } \leq 1$ should work.

\dfrac {|f(u)-f(v)|} {|u-v|} = \color{red} {\dfrac {||u|-|v||} {|u-v|} } \leq 1

Edit: see it working here

 

[robphy]

\require{colorv2} { \color{red} {\vec F_{net}}}=m {\color{blue}{\vec a}}

 

[robphy]

Experimenting:

V3 $\require{colorv2} { \color{red} x } + { \color{blue} y }$

V2 $\color{red}{x} + \color{blue}{y}$

$$ \color{red}{x} + \color{blue}{y} $$

\require{colorv2}

 

[pbuk]

\require{colorv2}

Ah yes that forces it but it would be better to fix the broken configuration.

 

[robphy]

\require{color}<br /> \colorbox{yellow}{1+1=10}

<br /> \color{red}1+1=10

 

[pbuk]

Ah yes that forces it but it would be better to fix the broken configuration.

.. which Greg has now done (it was a breaking change in MathJax 3.1) so no need for \require.

 

[robphy]

\colorbox{yellow}{Joy!}

<br /> \fcolorbox{black}{yellow}{$\vec F_{net}$} =m\color{blue}{\vec a}

Now if we could only get some interactive javascript [like Desmos or trinket/Glowscript embeded].