ones method
Return a new array of given shape, with ones
var ones = m2d.ones(3,3);
print(ones);
//[[1, 1, 1], [1, 1, 1], [1, 1, 1]]
Implementation
List ones(int row, int cols) =>
List.filled(row, 1).map((e) => List.filled(cols, 1)).toList();