Uses Taylor's theorem to give one over one minus a multipol
ooom(P,n)
Order of expansion
Multivariate polynomial
horner
# NOT RUN { ooom("x",5) ooom("x",5) * as.mvp("1-x") # zero through fifth order ooom("x+y",4) "x+y" %>% ooom(5) %>% `-`(1) %>% ooom(3) # }
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