Introduction - If you have any usage issues, please Google them yourself
Things quickly turn out that the BLAS(Basic Linear Algebra Subprograms) library is what I need, not only the LAPACK. In the LAPACKE user guide, which can be accessed from: http://netlib.org/lapack/lapacke.html , there are two examples named Calling CGEQRF and the CBLAS . I cann t get them correctly complied because I don t have the CBLAS(the C interface to BLAS) library installed.