Karim Belabas on Thu, 20 Sep 2012 11:51:48 +0200 |
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Re: forprime |
* Charles Greathouse [2012-09-18 21:23]: > > As for me not looping over all composits, but looping over integers > > with a given number of divisors will be of great interest. [...] > But it's hard to think of examples off the top of my head. Very often > it just comes up in the middle of a problem where I find the need and > I just code something. To my surprise, I'm using it quite a lot today, when using GP as a simple calculator to quickly tune isprimepower(). It's actually quite convenient :-) forfactored() is also interesting [ since one can quickly emulate forsquarefree(), fordisc(), etc. from this one ]. Do you already have code for it ? Thanks for suggesting this, K.B. -- Karim Belabas, IMB (UMR 5251) Tel: (+33) (0)5 40 00 26 17 Universite Bordeaux 1 Fax: (+33) (0)5 40 00 69 50 351, cours de la Liberation http://www.math.u-bordeaux1.fr/~belabas/ F-33405 Talence (France) http://pari.math.u-bordeaux1.fr/ [PARI/GP] `