#7013: table based prime_pi and nth_prime
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   Reporter:  kevin.stueve              |          Owner:  kevin.stueve         
   
       Type:  enhancement               |         Status:  needs_work           
   
   Priority:  major                     |      Milestone:  sage-4.8             
   
  Component:  number theory             |       Keywords:  primes, sieve, 
table,LMO
Work_issues:                            |       Upstream:  N/A                  
   
   Reviewer:  was,robertwb,GeorgSWeber  |         Author:  Kevin Stueve         
   
     Merged:                            |   Dependencies:                       
   
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Description changed by kevin.stueve:

Old description:

> Computes the prime counting and nth prime function.  This is my first
> Sage contribution.
>
> http://sage.math.washington.edu/home/robertwb/tmp/KevinStueve.tar.lzma
> http://sage.math.washington.edu/home/kstueve/KevinStueve.zip
> http://docs.google.com/View?id=df9q29vh_42dwz388hp

New description:

 The goal of this ticket is to add an implementation of Andrew Booker's
 table-based prime counting algorithm to Sage.  An optional spkg with the
 largest and densest available tables of counts of primes and prime
 k-tuplets will be made available.  Smaller tables may be made available in
 a standard spkg.

 Currently you can download the newest code and tables from
 
http://sage.math.washington.edu/home/kstueve/prime_pi_tables/table_based_prime_pi_31Dec2011.
 You have to apply the patch to Sage-4.7.2 and manually move the tables to
 SAGE_ROOT/data.  Currently the code doesn't work on all systems because of
 trouble enabling OpenMP, but it does work on Macs.

 Older code: [[BR]]
 23 July 2011 [[BR]]
 The code in attachment table_based_prime_pi_23_July_2011.zip uses the
 tables at
 
http://sage.math.washington.edu/home/kstueve/prime_pi_tables/prime_counting_tables23-July-2011.zip
 [[BR]]
 Summer 2009 [[BR]]
 http://sage.math.washington.edu/home/kstueve/KevinStueve.zip

 Paper: [[BR]]
 http://docs.google.com/View?id=df9q29vh_42dwz388hp

--

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7013#comment:57>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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