On entry: the increment in the subscripts of X between successive elements of .
6 Error Indicators and Warnings
8 Parallelism and Performance
F06FCF is not threaded by NAG in any implementation.
F06FCF makes calls to BLAS and/or LAPACK routines, which may be threaded within the vendor library used by this implementation. Consult the documentation for the vendor library for further information.
Please consult the X06 Chapter Introduction for information on how to control and interrogate the OpenMP environment used within this routine. Please also consult the Users' Note for your implementation for any additional implementation-specific information.