correct spelling

  void assign (size_t n, const Scalar& val) {

    /* Resize if necessary (behaviour of std:vector) */

    /* Resize if necessary (behavior of std:vector) */

    if(n>span())

      DV::resize(size_t (n*_extra_storage));

  const_reference back() const {return DV::h_view(_size - 1);}

  /* std::algorithms witch work originally with iterators, here they are implemented as member functions */

  /* std::algorithms which work originally with iterators, here they are implemented as member functions */

  size_t

  lower_bound (const size_t& start,