Author here. Ask me anything.
When I bring up the context menu for the compiled result on <https://iheartla.github.io/iheartla/>, my preferred renderer MathML is missing. I noticed right away that something is wrong because the result objectively looks bad, the bracket parts are of differing width, various surrounding elements do not align with the contained content, and also the text has terrible kerning. <https://files.catbox.moe/wp2r0t.webp>
Compare with e.g. <https://codimd.web.cern.ch/features#MathJax> which has much more options to choose from as renderer and its output as MathML is exceedingly pleasing to look at.
A_ij = { 1 if (i,j) ∈ E
0 otherwise
where
A ∈ ℝ^(n × n)
E ∈ { ℤ × ℤ }
n ∈ ℤAnother thing I find confusing are the braces around ℤ × ℤ. They seem to be unnecessary (it wouldn’t make much sense for ∈ to have higher precedence than ×), and/or would imply a singleton set containing the set ℤ × ℤ as its only element.
A_ij = { 1 if (i,j) ∈ E
{ 0 otherwise
where
A ∈ ℝ^(n × n)
E ∈ { ℤ × ℤ }
n ∈ ℤ A_ij = ⎰ 1 if (i,j) ∈ E
⎱ 0 otherwise
where
A ∈ ℝ^(n × n)
E ∈ { ℤ × ℤ }
n ∈ ℤWe do support the Unicode ⎡|⎦ symbols for matrices. The grammar is that a matrix starts with either [ or ⎡ and ends with either ] or ⎦. Rows can be optionally surrounded by |. I find this too cumbersome to use myself.
A_ij = | 1 if (i,j) ∈ E
| 0 otherwise
where
A ∈ ℝ^(n × n)
E ∈ { ℤ × ℤ }
n ∈ ℤIt would be useful if there was something like a help button in the IDE that opened this table in a modal, rather than just a link.
[1]: https://github.com/iheartla/iheartla/wiki/Keywords-And-Speci...