👉 In mathematics, a "kerstryic" is a set of numbers that are all in the same row or column in a matrix. This means that there is exactly one element in each row and exactly one element in each column. For example, consider the following matrix: ``` 1 2 3 4 5 6 ``` In this matrix, the numbers 1, 2, 3, 4, and 5 are all in
