Module D05BWF in NAG

• NAG Information

• Components
  • Documentation from ITL
  • Example from ITL
  • Example-output from ITL

D05BWF

 
Computes the quadrature weights associated with the Adams methods of orders
three to six and the Backward Differentiation Formulae (BDF) methods of orders
two to five. These rules, which are referred to as reducible quadrature rules, can
then be used in the solution of Volterra integral and integro-differential
equations.
 
Classes  :  I3 .  Integral equations
            H2c . Service routines for quadrature (compute weight and nodes for
                quadrature formulas)
 
Type     : Fortran subroutine in NAG library (D05 sublibrary).
Access   : Proprietary. Many implementations available.
Precision: Double.
 
Usage    : CALL D05BWF (METHOD, IORDER, OMEGA, NOMG, LENSW, SW, LDSW, NWT,
           IFAIL)
 
Details  : Documentation Example Example-output
Sites    : (1) AIX (2) ITL
 

Implementation of D05BWF from NAG on AIX

 
AIX:       IBM RS6000, National Institute of Standards and Technology (NIST),
           Gaithersburg, MD. Available to NIST staff.
 
Precision: Double.
 
Access available only to NIST staff on internal Unix systems. They may access this
package provided the /itl tree is cross-mounted.
 
   Link         : f77 -o prog prog.f -L/itl/links/generic/lib -lnag
   Documentation: acroread
                  /itl/apps/naglib-19/docs/NAGdoc/fl/pdf/D05/d05bwf_fl19.pdf
   Example      : cat
                  /itl/apps/naglib-19/flib619da/examples/source/d05bwfe.f
   Example-outpu: cat
                  /itl/apps/naglib-19/flib619da/examples/results/d05bwfe.r
 

Implementation of D05BWF from NAG on ITL

 
ITL:       Unix Workstation Network, National Institute of Standards and
           Technology (NIST), Gaithersburg, MD. Available to NIST staff.
 
Precision: Double.
 
Access available only to NIST staff on internal Unix systems. They may access this
package provided the /itl tree is cross-mounted.
 
   Link         : f77 -o prog prog.f {-lcomplib.sgimath}
                  -L/itl/links/generic/{lib lib32 lib64}{/mips3 /mips4}
                  -lnag
   Documentation: acroread
                  /itl/apps/naglib-19/flib619da/NAGdoc/fl/pdf/D05/d05bwf_fl19.pdf
   Example      : cat
                  /itl/apps/naglib-19/flib619da/examples/source/d05bwfe.f
   Example-outpu: cat
                  /itl/apps/naglib-19/flib619da/examples/results/d05bwfe.r