Wronskian

[Han]

Why not just convert it for the user? The code below assumes CAS-programming. In CAS view, SIZE() (note the upper case) will return a real number for a list delimited by [ ] and a CAS list (in the form [ row col ]) for a matrix.

Code:

IF TYPE(flist)==4 THEN
  s:=SIZE(flist);
  IF TYPE(s)==4 THEN
    // we have a matrix instead of a vector in [ ] form; maybe return error msg?
  ELSE
    // here is where we can assume flist is now in the proper [ ] form
  END;
END;

EDIT: it appears we don't even really need to convert; a list is a list in CAS regardless of the actual delimiters displayed.