One-over-one-minus for spray objects; the nearest to ‘division’ that we can get.
ooom(S, n)
Returns a spray object of the same arity as S.
S
object of class spray
Order of the approximation
Robin K. S. Hankin
Returns the Taylor expansion to order \(n\) of 1/(1-S), that is, 1+S+S^2+S^3+ +S^n1+S+S^2+S^3+...+S^n.
(x <- spray(matrix(1))) ooom(x,5) # 1 + x + x^2 + x^3 + x^4 + x^5 (a <- homog(4,2)) d <- (1-a)*ooom(a,3) constant(d) # should be 1 rowSums(index(d)) # a single 0 and lots of 8s.
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