The pow() variant further improves accuracy (GH-102866)

2023-03-21 00:02:14 -05:00 · 2023-03-21 00:02:14 -05:00 · 1a5a14183e
parent 4075fe1d8d
commit 1a5a14183e
1 changed files with 1 additions and 1 deletions
--- a/Doc/library/itertools.rst
+++ b/Doc/library/itertools.rst
@ -876,7 +876,7 @@ which incur interpreter overhead.
       n = len(coefficients)
       if n == 0:
           return x * 0  # coerce zero to the type of x
-       powers = accumulate(repeat(x, n - 1), operator.mul, initial=1)
+       powers = map(pow, repeat(x), range(n))
       return math.sumprod(reversed(coefficients), powers)

   def polynomial_from_roots(roots):