Computes a split Cholesky factorization of a real symmetric positive definite band matrix. Designed to be used in conjunction with SSBGST. The factorization has the form A = S'S, where S is a band matrix of the same bandwidth as A, with block rows ( U 0 ) and ( M L ), where U is upper triangular of order m = (n+b)/ 2, L is lower triangular of order n-m, and b is the bandwidth of A. [C version of LAPACK routine, converted from Fortran by f2c.]. Classes : D4c1c . Standardize matrix eigenvalue problem D3b2 . Determinants of real symmetric positive definite banded matrices Type : C subroutine in CLAPACK package. Access : Public domain. Portable. Precision: Single. Note : For best results, CLAPACK developers prefer that you download and install the entire CLAPACK library on your system. To do this, see the netlib CLAPACK distribution for details. Usage : int spbstf_(char *uplo, integer *n, integer *kd, real *ab, integer *ldab, integ er *info) See also : SSBGST Details : Fullsource Readme Source Utilities Sites : (1) NETLIB
NETLIB: Public access repository, The University of Tennessee at Knoxville and Bell Laboratories Precision: Single. (Double: DPBSTF.C) Note : For best results, CLAPACK developers prefer that you download and install the entire CLAPACK library on your system. To do this, see the netlib CLAPACK distribution for details. You may access components from NETLIB outside GAMS as follows. Access : The entire package can be retrieved by anonymous ftp from ftp.netlib.org. Source : echo 'send only spbstf.c from clapack/single' | mail netlib@ornl.gov Fullsource : echo 'send spbstf.c from clapack/single' | mail netlib@ornl.gov Utilities : Retrieve clapack/f2clibs.tgz by anonymous ftp from ftp.netlib.org Readme : Retrieve clapack/readme by anonymous ftp from ftp.netlib.org
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