1 Creating a matrix with all ones:\\

     2 {\ex \lstinline|    o = ones_like(l)|}

     3 

     4 Creating the A matrix:\\

     5 {\ex \lstinline|    A = array(l, ones_like(l)).T|}

     6 

     7 Computing least square:\\

     8 {\ex \lstinline|    result = lstsq(A, tsq)|}

     9 

    10 Obtaining the m and c values:\\

    11 {\ex \lstinline|    m, c = result[0]|}

    12 

    13 Computing the least square fit line:\\

    14 {\ex \lstinline|    lst_line = m * l + c|}

    15