LAPACK HTML version LAPACK = Linear Algebra PACKage ~ LINPACK + EISPACK

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Presentation transcript:

LAPACK HTML version LAPACK = Linear Algebra PACKage ~ LINPACK + EISPACK

Problems that LAPACK can Solve Systems of linear equations Linear least squares problems Eigenvalue problems Singular value problems

Installation Prebuilt LAPACK libraries: Source code: Machine-specific installation hints: Tuning parameters set in ILAENV Floating-point arithmetics determined in SLAMCH or DLAMCH

Other Related Software IMSL MATLAB + MAPLE

Structure of LAPACK Levels of Routines Driver routines solve standard types of problems Computational routines perform distinct computational tasks Auxiliary routines perform low-level computations

Naming Scheme XYYZZZ X indicates the data type YY indicates the type of matrix ZZZ indicates the computation performed

X SREAL DDOUBLE PRECISION CCOMPLEX Z COMPLEX*16 or DOUBLE COMPLEX

YY ( partial list ) BDbidiagonal DIdiagonal GBgeneral band GEgeneral GGgeneral matrices, generalized problem GTgeneral tridiagonal

ZZZ ZZZ indicate the computation performed: Example

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