30 Dec
2009
30 Dec
'09
4:40 p.m.
Am Mittwoch 30 Dezember 2009 17:28:37 schrieb Roel van Dijk:
I can't offer much insight but could the answer lie in the Integer type? I suspect that with a sufficiently large fixed Int type (2^14 bits?) the performance of the two functions would be almost equal.
For fact (10^6), we'd need rather 2^24 bits for the performance to be comparable. Imagine such an ALU :D
Could it be that the second function delays the multiplication of large numbers as long as possible? The divide-and-conquer approach?
Exactly.