linterp, an R library which returns the intercept and slope of the line through two points.
Copyright 2016 James P. Howard, II
The computer code and data files on this web page are distributed under the BSD-2-Clause license.
linterp is available in an R version.
horner, an R library which evaluates a polynomial using Horner's method.
pwiselinterp, an R library which finds the intercept and slope for a sequence of piecewise linear interpolants.
Original R code by James Howard; Modifications by John Burkardt.