https://github.com/cran/pracma
Tip revision: c69aa96969f2c9b1cbf8c3970f9dc394bfcbd550 authored by Hans W. Borchers on 07 December 2021, 05:30:02 UTC
version 2.3.6
version 2.3.6
Tip revision: c69aa96
horner.R
##
## h or n e r . R Test Suite
##
horner <- pracma::horner
hornerdefl <- pracma::hornerdefl
p <- c(1, 0, 1)
x <- c(-2, -1, 0, 1, 2)
identical(horner(p, x)$y, x^2 + 1)
identical(horner(p, x)$dy, 2*x)
p <- c(1, -6, 11, -6)
identical(hornerdefl(p, 3)$y, 0)
identical(hornerdefl(p, 3)$q, (c(1, -3, 2)))