Following a wise advise: here's is an indication of the speed of my pc:
10 ts'%. 200 200 [EMAIL PROTECTED] 1000'
0.0865417 3933888
@@i schreef:
> JATK or let's say J4F.
>
> Generating a sequence of ordered perfect powers <= N
> ref. OLEIS A001597
>
> I have a tacit (pmt) and a explicit (pmx) version both with the same
> algorithm
>
> *nb* Without ext. prec.
>
> pmt 200
> 1 4 8 9 16 25 27 32 36 49 64 81 100 121 125 128 144 169 196
>
> 10 ts 'pmt 2000000'
> 0.006247 232448
>
> 10 ts 'pmx 2000000'
> 0.0036827 275712
>
>
> x:{: pmx 2e6
> 1999396
>
> #pmt 1e6 NB. OLEIS A070428
> 1111
>
>
> Testing if a number > 1 is a perfect power:
>
> (1<[:+./[:{:__&q:) 220
> 0
>
> (1<[:+./[:{:__&q:) 32
> 1
>
>
> Just anxious to know (JATK) what's possible. :-)
>
>
>
> =@@i
>
>
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