setRow method

void setRow (int row, Vector2 arg)

Sets row of the matrix to values in arg

Implementation 

void setRow(int row, Vector2 arg) {
  final Float64List argStorage = arg._v2storage;
  _m2storage[index(row, 0)] = argStorage[0];
  _m2storage[index(row, 1)] = argStorage[1];
}