12 May 2025 07:28:51 AM UMFPACK_SIMPLE: C++ version Use UMFPACK to solve the sparse linear system A*x=b. Computed solution: x[0] = 1 x[1] = 2 x[2] = 3 x[3] = 4 x[4] = 5 UMFPACK_SIMPLE: Normal end of execution. 12 May 2025 07:28:51 AM