![](https://secure.gravatar.com/avatar/723b49f8d57b46f753cc4097459cbcdb.jpg?s=120&d=mm&r=g)
23 Sep
2013
23 Sep
'13
9:51 a.m.
On 09/21/2013 08:57 PM, Ralf Gommers wrote:
fftpack ``````` Needed:
- solve issues with single precision: large errors, disabled for difficult sizes - fix caching bug - Bluestein algorithm nice to have, padding is alternative
A battle-tested Bluestein is included in Martin Reinecke's C port of FFTPACK. https://github.com/dagss/libfftpack As you can see in the readme there were a couple of changes to FFTPACK to improve accuracy for large primes. Dag Sverre