BLAS2
MatrixVector Basic Linear Algebra Subprograms
BLAS2
a C library which
constitutes the Level 2 Basic Linear Algebra Subprograms (BLAS),
for matrixvector operations.
The BLAS are a small core library of linear algebra utilities,
which can be highly optimized for various architectures.
Licensing:
The computer code and data files described and made available on this web page
are distributed under
the GNU LGPL license.
Languages:
BLAS2 is available in
a C version and
a C++ version and
a FORTRAN77 version and
a FORTRAN90 version and
a MATLAB version.
Related Data and Programs:
BLAS,
a C library which
contains the Basic Linear Algebra Subprograms (BLAS)
for level 1 (vectorvector operations),
level 2 (matrixvector operations) and
level 3 (matrixmatrix operations),
for single precision real arithmetic,
double precision real arithmetic,
single precision complex arithmetic, and
double precision complex arithmetic.
Reference:

Edward Anderson, Zhaojun Bai, Christian Bischof, Susan Blackford,
James Demmel, Jack Dongarra, Jeremy Du Croz, Anne Greenbaum,
Sven Hammarling, Alan McKenney, Danny Sorensen,
LAPACK User's Guide,
Third Edition,
SIAM, 1999,
ISBN: 0898714478,
LC: QA76.73.F25L36.

Jack Dongarra, Jim Bunch, Cleve Moler, Pete Stewart,
LINPACK User's Guide,
SIAM, 1979,
ISBN13: 9780898711721,
LC: QA214.L56.

Charles Lawson, Richard Hanson, David Kincaid, Fred Krogh,
Algorithm 539:
Basic Linear Algebra Subprograms for Fortran Usage,
ACM Transactions on Mathematical Software,
Volume 5, Number 3, September 1979, pages 308323.
Source Code:
Examples and Tests:
List of Routines:

DGEMV computes y := alpha * A * x + beta * y for general matrix A.

DGER computes A := alpha*x*y' + A.

DTRMV computes x: = A*x or x = A'*x for a triangular matrix A.

SGEMV computes y := alpha * A * x + beta * y for general matrix A.

SGER computes A := alpha*x*y' + A.

STRMV computes x: = A*x or x = A'*x for a triangular matrix A.
You can go up one level to
the C source codes.
Last revised on 04 April 2014.