How to horizontally align math symbols by their center when writing a multi-line block?

[Tarun]

Let’s say I have a multi-line block of math: a_1 + a_2 = b on line 1, dots.v on line 2, and y_1 + y_2 = z on line 3. This is the initial code:

$
a_1 + a_2 = b \
dots.v \
y_1 + y_2 = z
$

By default, Typst renders this:

I would like to align dots.v on line 2 with the center of the equals signs on lines 1 and 3. I tried using alignment points:

$
a_1 + a_2 &= b \
&dots.v \
y_1 + y_2 &= z
$

But that renders like this:

Even if I wrap the equals signs and ellipses with two alignment points (e.g.: &=& and &dots.v&), it renders the same.

Is there a (preferably easy/quick) way to horizontally align math symbols by their centers, so that vertical ellipses is in line with the center of equals signs, etc.?

[Y.D.X]

Hi, welcome to the forum!

Using Matrix Function – Typst Documentation is an option:

$
  mat(
    delim: #none,
    a_1 + a_2, =, b;
    , dots.v;
    y_1 + y_2, =, z;
  )
$

(If you formula already has ,, replace them with \, when passing to mat.)

[Tarun]

Thank you! Would there be a potential downside of using this method with regards to accessibility, such as with screen readers, etc.?