HP Fortran Programmer's Reference (September 2007)

BLAS and libU77 libraries
Calling libU77 and BLAS routines
Chapter 12646
EXTERNAL FLUSH
See “EXTERNAL (statement and attribute)” on page 358 for a description of the EXTERNAL
statement and attribute. As noted in the description, the attribute form of EXTERNAL cannot
be used with subroutines, which must therefore be specified in the statement form.
Man pages
You can get detailed, online information for any libU77 or BLAS routine by using the man
command to display an online reference page for that routine. The command-line syntax for
the man command is:
man section_number routine_name
where section_number is either 3f (for libU77) man pages or 3x (for BLAS); and
routine_name is the name of the libU77 or BLAS routine. For example, to display the man
page for the libU77 routine FLUSH, give the command:
$ man 3f flush
To display the man page for the BLAS routine SAXPY, give the command:
$ man 3x saxpy
Two of the BLAS man pages provide general information about the BLAS routines: blas1(3x)
describes basic vector operations, and blas2(3x) describes basic matrix operations.