Reference

interp(3m)

NAME

interp

DESCRIPTION

subroutine interp.f

source
Bevington, pages 266-267.

purpose
interpolate between data points to evaluate a function

usage
call interp (x, y, npts, nterms, xin, yout)

description of parameters
x - array of data points for independent variable
y - array of data points for dependent variable
npts - number of pairs of data points
nterms - number of terms in fitting polynomial
xin - input value of x
yout - interpolated value of y

subroutines and function subprograms required
none

comments
valid for nterms up to 10
value of nterms may be modified by the program