Module E02AGF in NAG

• NAG Information

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

E02AGF

 
Computes constrained weighted least-squares polynomial approximations in
Chebyshev series form to an arbitrary set of data points. The values of the
approximations and any number of their derivatives can be specified at selected
points.
 
Classes  :  K1a2a . Linearly constrained linear least squares approximation
 
Type     : Fortran subroutine in NAG library (E02 sublibrary).
Access   : Proprietary. Many implementations available.
Precision: Double.
 
Usage    : CALL E02AGF (M, KPLUS1, NROWS, XMIN, XMAX, X, Y, W, MF, XF, YF, LYF, IP,
           A, S, NP1, WRK, LWRK, IWRK, LIWRK, IFAIL)
 
See also : E02AKF
 
Details  : Documentation Example Example-input Example-output
Sites    : (1) AIX (2) ITL
 

Implementation of E02AGF 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/E02/e02agf_fl19.pdf
   Example      : cat
                  /itl/apps/naglib-19/flib619da/examples/source/e02agfe.f
   Example-input: cat
                  /itl/apps/naglib-19/flib619da/examples/data/e02agfe.d
   Example-outpu: cat
                  /itl/apps/naglib-19/flib619da/examples/results/e02agfe.r
 

Implementation of E02AGF 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/E02/e02agf_fl19.pdf
   Example      : cat
                  /itl/apps/naglib-19/flib619da/examples/source/e02agfe.f
   Example-input: cat
                  /itl/apps/naglib-19/flib619da/examples/data/e02agfe.d
   Example-outpu: cat
                  /itl/apps/naglib-19/flib619da/examples/results/e02agfe.r