How to use `row-gap` in the `mat` function?

Questions
,
1

I want to manually adjust the row-gap of a matrix. Then I found the syntax is confusing. This works:

$
mat(1;2;3; delim:"[", gap:#1em)
$

But this doesn’t:

$
mat(1;2;3; delim:"[", row-gap:#1em)
$

How should I do it properly?

2

I’m not sure but this might be related to the recent question: How to use arguments with hyphens in math mode.

The documentation shows that you can use a set command to do this:

#set math.mat(row-gap: 1em)
$
mat(1;2;3; delim:"[")
$

Which renders the same as what you posted using the argument gap. This will affect all matrices after this unless you encase this part in its own scope:

Code wtih Scope 
$
mat(1;2;3; delim:"[")
$

#[
  #set math.mat(row-gap: 1em)
  $
  mat(1;2;3; delim:"[")
  $
]

$
mat(1;2;3; delim:"[")
$
Output

image

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