06 June 2024 05:15:50 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 05:15:50 PM