Typeset matrix from Array in Typst

Question

I'm trying to do and show a Matrix Multiplication in Typst. I implemented the basic O(n³) algorithm for matmul and it's working. My return value is an array of arrays. Now I want to show the content of the matrix as a $ mat() $.

I looked here and something very similar to what I want is being done, but with a table.

table(
    columns: C.len(),
    rows: C.first().len(),
    ..for row in C {
      for cell in row {
        (str(cell),)
      }
    }
)

However, that ..for destructuring seems not to be possible on $ mat() $.

So how do I pass a matrix (array of arrays) to a $ mat() $ function to be typeset?

Full source code: https://typst.app/project/rGXaEQsB1LzGgXw9KO39Dv

Answer 1

Like so: $ #math.mat(..C) $. You need to use the spreading operator but it only works in code mode which we reenter with # here.