min c’x subject to Ax = b, l <= x <= u File Format: nrow (number of rows in A) ncol (number of cols in A) Anz (number of nonzeros in A) dcost (add to cost to get original cost) Ap (column pointers, ncol+1 integer) Ai (row indices of nonzeros in A, Anz integer) Ax (numerical values of nonzeros in A ,Anz real) b (nrow real) c (ncol real) l (ncol real) u (ncol real) Ap (j) = location of start of column j Ai (Ap (j)) through Ai (Ap (j+1)-1) are the row indices in column j Ax (Ap (j)) through Ax (Ap (j+1)-1) are the numerical values in column j