## WeBWorK Main Forum

### Anyone else seeing | symbol appear AFTER math stuff? How remove?

by Christian Seberino -
Number of replies: 3
Anyone else seeing | symbol appear AFTER math stuff?

I didn't use to have this problem but it seems like | started appearing after math stuff.  (I use PGML if that matters.)

I've attached a screenshot of the problem.  Here's the
source for the problem....

DOCUMENT();
loadMacros(
"MathObjects.pl",
"PGstandard.pl",
"PGML.pl",
"PGcourse.pl",
"parserNumberWithUnits.pl",
"contextArbitraryString.pl",
"parserMultiAnswer.pl",
"parserPopUp.pl",
"contextInequalities.pl",
"PGgraphmacros.pl",
);
TEXT(beginproblem());
\$showPartialCorrectAnswers = 1;
######################################################################

Context("Numeric") ; Context()->flags->set(tolerance => 0.01);

BEGIN_PGML
Calculate [\int_{-3}^{3} \sqrt{9 - x^2} dx].

Hint: What is the shape of the corresponding area?

[________________________]{Compute("9*pi/2")}
END_PGML

######################################################################
ENDDOCUMENT();

In reply to Christian Seberino

### Re: Anyone else seeing | symbol appear AFTER math stuff? How remove?

by Michael Shulman -
Apparently this is a bug in MathJax that was recently fixed.
In reply to Michael Shulman

### Re: Anyone else seeing | symbol appear AFTER math stuff? How remove?

by Alex Jordan -
For the record, I think it was technically a bug in some browsers, and MathJax has adapted to work around the bug.
In reply to Alex Jordan

### Re: Anyone else seeing | symbol appear AFTER math stuff? How remove?

by Joel Trussell -
I had the same thing - MathJax and browser was the problem - updating the MathJax made it go away