BLAS1_S is a FORTRAN90 library which implements the Level 1 BLAS, or Basic Linear Algebra Subprograms in single precision real arithmetic.
The BLAS are a small core library of linear algebra utilities, which can be highly optimized for various architectures. Software that relies on the BLAS is thus highly portable, and will typically run very efficiently.
The Level 1 BLAS are primarily for use in vector operations. In certain cases, they may also be used to operate on the rows or columns of a two-dimensional array.
The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.
BLAS1_S is available in a C version and a C++ version and a FORTRAN77 version and a FORTRAN90 version and a MATLAB version.
BLAS1, a FORTRAN90 library which contains basic linear algebra routines for vector-vector operations, combining the single and double precision, real and complex arithmetic libraries.
BLAS1_C, a FORTRAN90 library which is the single precision complex arithmetic version of BLAS1.
BLAS1_D, a FORTRAN90 library which is the double precision real arithmetic version of BLAS1.
BLAS1_Z, a FORTRAN90 library which is the double precision complex arithmetic version of BLAS1.
BLAS2, a FORTRAN90 library which handles matrix-vector operations.
BLAS3, a FORTRAN90 library which handles matrix-matrix operations.
GSL, a C++ library which includes an implementation of the BLAS1 routines.
LAPACK_EXAMPLES, a FORTRAN90 program which demonstrates the use of the LAPACK linear algebra library.
LINPACK_S, a FORTRAN90 library which is a linear algebra package using single precision real arithmetic.
NMS, a FORTRAN90 library which includes BLAS1.
SLATEC, a FORTRAN90 library which includes BLAS1.
Original FORTRAN77 version by Charles Lawson, Richard Hanson, David Kincaid, Fred Krogh. FORTRAN90 version by John Burkardt.
You can go up one level to the FORTRAN90 source codes.