All of the standard double-precision level 1, 2 and 3 BLAS routines are available within MOLPRO. Documentation for these can typically be found in system man pages, or on the world-wide web (e.g., http://www.netlib.org/blas/index.html)
A subset of LAPACK is also available, as specified in the file src/blas/lapack.f. If additional routines are required for your program, they must be obtained from NETLIB and inserted in lapack.f.
MOLPRO also uses widely some matrix-matrix and matrix-vector routines of
other origin, as described below.