20210328, 02:23  #1 
"Ed Hall"
Dec 2009
Adirondack Mtns
3·37^{2} Posts 
nextprime() odd behavior?
Doesn't this seem a tiny bit odd?
Script (calling YAFU wip r395): Code:
#!/bin/bash np=2 while [ $np lt 30 ] do printf "nextprime for $np is " np=$(./yafu "nextprime($np)" silent) echo "$np" done Code:
$ bash primesgen.sh nextprime for 2 is 3 nextprime for 3 is 13 nextprime for 13 is 17 nextprime for 17 is 19 nextprime for 19 is 23 nextprime for 23 is 29 nextprime for 29 is 31 
20210329, 14:48  #2 
"Ben"
Feb 2007
3×1,193 Posts 
Well, that was silly. Thanks as always for testing! Fixed in r396.
P.s., *cough* "primes(0,1e6,0)" pscreen *cough* 
20210329, 18:11  #3 
"Ed Hall"
Dec 2009
Adirondack Mtns
3×37^{2} Posts 

20210329, 18:18  #4 
"Ben"
Feb 2007
3×1,193 Posts 
I had to look it up too . primes(0,1000000) is the same as primes(0,1000000,1) which just counts primes in the range. primes(0,1000000,0) actually computes them and pscreen dumps them to screen. pfile puts them in primes.dat.

20210329, 20:19  #5  
"Ed Hall"
Dec 2009
Adirondack Mtns
3·37^{2} Posts 
Quote:
Thanks for all! 

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