### 2.37.19 Sort a list by increasing order : `SortA`

`SortA` takes as argument a list.

`SortA` returns this list sorted by increasing order.

Input :

`SortA([3,4,2])`

Output :

`[2,3,4]`

`SortA` may have a matrix as argument and in this case,
`SortA` modifies the order of columns by sorting the first matrix
row by increasing order.

Input :

`SortA([[3,4,2],[6,4,5]])`

Output :

`[[2,3,4],[5,6,4]]`