The use of the constant C1 looks odd. It is used in the numpy
version, but not in the Matlab or J versions.
Mike Powell
On 22-Dec-06, at 6:01 AM, bill lam wrote:
Xu Zuoqian wrote:
And the timing is:
d=.?(2^23)$0
ts 'D4_Transform d'
150.59277 7.718007e8
Before talking about efficiency could you give the correct result of
D4_Transform d
for validation, and also use
d=. ?.(2^23)$0
so that experiment is repeatable.
--
regards,
bill
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