20 July 2014 11:37:48 PM UMFPACK_WATHEN: C++ version Use UMFPACK to solve a sparse linear system A*x=b. Number of ST values = 576 Number of CC values = 472 L2 error ||X1 - X2||: 3.47827e-15 UMFPACK_SIMPLE: Normal end of execution. 20 July 2014 11:37:48 PM