def sparse_matrix(fh_in): Creates a sparse matrix 2D 11 st. Use: matrix = sparae matrix(fh_in) Parameters: Ih in - the matrix file to procegs (ffle handle - already open for reading) Rivturna: 1 - a 20 Ifst of the form: ( (row, col, value], [Fow, col, value], ... I (2D Iigt of int) sparse1.txt x 10,0,0,0,0,0,0,0,6,0 20,0,0,9,0,0,0,0,0,0,0 30,2,0,0,0,0,0,4,0,0,0 40,0,0,0,0,0,7,0,0,0,0 sparse2.txt x 10,0,0,0,0,0 20,0,0,0,0,0 30,0,0,0,0,0 4 sparse3.txt X 112,13,14,0 2 D Console x No consoles to display at this time