06 June 2024 04:59:06 PM lapack_test(): C++ version lapack() is a Fortran library of linear algebra utilities. A C++ program can call it, if careful. dgeev_test(): dgeev() computes eigenvalues and eigenvectors of a matrix A, with matrix A in general storage. Computed eigenvalues lambda: 4 + 0 * i -4 + 0 * i -2 + 0 * i -1.08456e-16 + 0 * i 2 + 0 * i dgesv_test(): dgesv() solves a linear system A*x=b, with matrix A in general storage. Computed solution x: 1 2 3 lapack_test(): Normal end of execution, 06 June 2024 04:59:06 PM