GAMS: Module PCHIM in CMLIB

General Information

Determines a monotone piecewise cubic Hermite interpolant to given data. Default boundary values are provided which are compatible with monotonicity. The interpolant will have an extremum at each point where monotonicity switches direction.

Usage

CALL PCHIM(N, X, F, D, INFD, IERR)

Classification

E1a	Interpolation of univariate data by polynomial splines (piecewise polynomials)

Type

subroutine in CMLIB package (PCHIPS sublibrary)

Language

Fortran

Availability

Public domain, Portable

Precision

Single Precision

Alternates

DPCHIM: Double Precision

See also

PCHFE for evaluation. See package documentation for other facilities.

Download from ARNO; Silicon Graphics Origin 2000

Location

National Institute of Standards and Technology (NIST), Gaithersburg, MD.

Contact

Gaithersburg Consulting Office: 301-975-2968, consult@nist.gov

Usage

Those logged in to arno.nist.gov or amur.nist.gov may access this module as follows.

Documentation: cmdoc pchim
Fullsource: cmsrcx pchim
Source: cmsrc pchim
To Link: See cmlib man page.

Installation on ITL; Unix Workstation Network

Location

National Institute of Standards and Technology (NIST), Gaithersburg, MD.

Contact

Gaithersburg Consulting Office: 301-975-2968 (FTS 879-2968)

Usage

Access available only to NIST staff on internal Unix systems. They may access this package provided the /itl tree is cross-mounted.

Documentation: cmdoc pchim
Fullsource: cmsrcx pchim
Source: cmsrc PCHIM
To Link: f77 -o main main.f -lcm