Forum: support

RE: Multiline Equations that work with MathJax in Blackboard Ultra [ Reply ] By: Andrea Tarelli on 2026-02-18 16:24	[forum:50149]
As far as I know, BB Ultra does not support multiline equation environments for the time being. A workaround (to be tested) might be using an array environment with the required alignments. E.g., \begin{array}{rcl} ... \end{array}. Best, Andrea

RE: Multiline Equations that work with MathJax in Blackboard Ultra [ Reply ] By: Achim Zeileis on 2026-02-18 16:06	[forum:50148]
Thanks for checking. Then I don't have any other guesses what might cause this (other than Bb), sorry. Maybe someone else who is reading this might know more?

RE: Multiline Equations that work with MathJax in Blackboard Ultra [ Reply ] By: Thomas Farrar on 2026-02-18 13:47	[forum:50147]
Thanks. I've tried all permutations of those changes, but none seems to render.

RE: Multiline Equations that work with MathJax in Blackboard Ultra [ Reply ]
By: Achim Zeileis on 2026-02-18 12:34

[forum:50146]

I haven't got any experience with this in Bb Ultra and hence cannot contribute anything substantial. Your LaTeX code should work in MathJax and I wouldn't be aware of any other systems where it doesn't work.

Just as a shot in the dark: Maybe try with just a single double-backslash (rather than two double backslashes) and with two ampersands per line in eqnarray, i.e.,

$$
\begin{eqnarray*}
2x - 4 & = & 6 \\
2x & = & 10 \\
x & = & 5
\end{eqnarray*}
$$

If we're lucky, maybe one of that changes helps to avoid the problem...

Multiline Equations that work with MathJax in Blackboard Ultra [ Reply ]
By: Thomas Farrar on 2026-02-18 09:32

[forum:50145]

Hi all,

I've back to using Blackboard Ultra for online assessments after a hiatus. During the interim, I understand (from following the message boards at the Anthology Teaching & Learning Ideas Exchange) that Blackboard Ultra finally supports MathJax again. However, when I deploy multiline equations such as the following via exams2blackboard with mathjax = TRUE and converter = "pandoc-mathjax", they do not render in the browser.

Is anyone aware whether the implementation of MathJax in Blackboard Ultra does support multiline equations, and if so, how best to typeset them in LaTeX?

What I've tried:

$$\begin{aligned}
2x - 4 &= 6 \\\\
2x &= 10 \\\\
x &= 5
\end{aligned}$$

or

\begin{eqnarray*}
2x - 4 &= 6 \\\\
2x &= 10 \\\\
x &= 5
\end{eqnarray*}