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= Basic Linear Algebra Subroutines (BLAS) =
[http://www.netlib.org/blas/faq.html]
Core routines used by LAPACK (Linear Algebra Package) and elsewhere.
Generally optimized for particular machine architectures, cache hierarchy.
The subroutines are categorized to three levels.
* Level 1: Scalar and vector operations
* Level 2: Matrix-vector operations
* Level 3: Matrix-matrix operations
Subroutine names start with:
* S: single precision
* D: double precision
* C: single precision complex
* Z: double precision complex
Examples:
* DDOT: dot product of two vectors
* DGEMV: matrix-vector multiply, general matrices
* DGEMM: matrix-matrix multiply, general matrices
* DSYMM: matrix-matrix multiply, symmetric matrices
List of Subroutine : [http://www.netlib.org/blas/blasqr.pdf]
== Example ==
* [[Blas Level 1]]
* [[Blas Level 2]]
* [[Blas Level 3]]