Computes selected eigenvalues and eigenvectors of a real symmetric matrix in packed storage. (Expert driver.). [C version of LAPACK routine, converted from Fortran by f2c.]. Classes : D4a1 . Real symmetric matrix eigenvalue problems Type : C subroutine in CLAPACK package. Access : Public domain. Portable. Precision: Double. 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 dspevx_(char *jobz, char *range, char *uplo, integer *n, doublereal *ap, do ublereal *vl, doublereal *vu, integer *il, integer * iu, doublereal *abstol, in teger *m, doublereal *w, doublereal *z, integer *ldz, doublereal *work, intege r *iwork, integer *ifail, integer *info) Details : Fullsource Readme Source Utilities Sites : (1) NETLIB
NETLIB: Public access repository, The University of Tennessee at Knoxville and Bell Laboratories Precision: Double. (Single: SSPEVX.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 dspevx.c from clapack/double' | mail netlib@ornl.gov Fullsource : echo 'send dspevx.c from clapack/double' | 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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