Module NAG_REAL_CHOLESKY_SKYLINE_SOLVE in NAGC

• NAGC Information

• Components
  • Documentation from ITL
  • Example from ITL
  • Example-input from ITL
  • Example-output from ITL
  • Local-details from ITL

NAG_REAL_CHOLESKY_SKYLINE_SOLVE

 
Computes the approximate solution of a system of real linear equations with
multiple right-hand sides, AX = B, where A is a symmetric positive-definite
variable-bandwidth matrix, which has previously been factorized by
nag_real_cholesky_skyline (f01mcc). Related systems may also be solved.
 
Classes  :  D2b2 . Solution of systems of linear equations, including matrix
                 inverses, and LU and related factorizations (real symmetric
                 positive definite banded matrices)
 
Type     : C subroutine in NAGC library (F04 sublibrary).
Access   : Proprietary. Many implementations available.
Precision: Double.
Note     : This procedure may also be invoked using the name f04mcc.
 
Usage    : void nag_real_cholesky_skyline_solve(Nag_SolveSystem selct,
           Integer n, Integer nrhs, double al[], Integer lal, double d[],
           Integer row[], double b[], Integer tdb, double x[], Integer tdx,
           NagError *fail)
 
See also : nag_real_cholesky_skyline (f01mcc)
 
Details  : Documentation Example Example-input Example-output
           Local-details
Sites    : (1) ITL
 

Implementation of NAG_REAL_CHOLESKY_SKYLINE_SOLVE from NAGC on ITL

 
ITL:       Unix Workstation Network, National Institute of Standards and
           Technology (NIST), Gaithersburg, MD. Available to NIST staff.
 
Precision: Double.
Note     : This procedure may also be invoked using the name f04mcc.
 
Access available only to NIST staff on internal Unix systems. They may access this
package provided the /itl tree is cross-mounted.
 
   Link         : cc -I/itl/links/generic/include -o prog prog.c
                  -L/itl/links/generic/{lib lib32 lib64}{/mips3 /mips4}
                  -lnagc -lm
   Local-details: cat /itl/apps/nagclib-6/docs/implementation
   Example-outpu: cat
                  /itl/apps/nagclib-6/clsol06da/examples/results/f04mcce.r
   Example      : cat
                  /itl/apps/nagclib-6/clsol06da/examples/source/f04mcce.c
   Example-input: cat
                  /itl/apps/nagclib-6/clsol06da/examples/data/f04mcce.d
   Documentation: acroread
                  /itl/apps/nagclib-6/docs/NAGdoc/cl/pdf/F04/f04mcc_cl05.pdf