21 May
2009
21 May
'09
3:46 p.m.
On Thu, May 21, 2009 at 10:26, dmitrey <dmitrey.kroshko@scipy.org> wrote:
Hi all, I expected to have some speedup via using ldexp or multiplying an array by a power of 2 (doesn't it have to perform a simple shift of mantissa?),
Addition of the exponent, not shift of the mantissa.
but I don't see the one.
I said there *might* be a speedup, but it was probably going to be insignificant. The overhead of using frexp and ldexp probably outweighs any benefits. -- Robert Kern "I have come to believe that the whole world is an enigma, a harmless enigma that is made terrible by our own mad attempt to interpret it as though it had an underlying truth." -- Umberto Eco