I've been struggling for awhile, I've been trying to use CLAPACK to avoid learning Fortan. I think i've just a linking problem, since I've been testing code that's supposed to work. in the VC command prompt i type cl dgesv.c and I get the error LNK2019: unresolved external symbol _dgesv_ referenced in function _main if I try to link the library cl dgesv.c /link clapack.lib then i get redundancy in some of the defaults like printf (alrady defined in LIBCMT.lib) and i also get the error. LNK4098 default lib 'MSVCRTD' conflicts with the use of other libs Can someone help me fix this? Otherwise I was trying to use seldon, but there seems to be very little information on how to use it.