bugGNU Scientific Library - Bugs: bug #39473, more efficient algorithm for...

 
 

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bug #39473: more efficient algorithm for 3j,6j,9j calculations (gsl_sf_coupling_{3j,6j,9j}_e

Submitted by:  Patrick Alken <psa>
Submitted on:  Fri 12 Jul 2013 04:09:04 PM UTC  
 
Category:  Performance Severity:  3 - Normal
Operating System:  Status:  None
Assigned to:  None Open/Closed:  Open
Release: 

Fri 12 Jul 2013 04:09:04 PM UTC, original submission:

(From Alexey Illarionov)

Btw, the the algorithm of evaluation of 3j, 6j, 9j in GSL is the worst
possible. It just follows the Racah formula and does not use any
symmetry properties. See [Tuzun et all, Comp Phys Comm, 1998] for 3j,
6j algorithms.

Patrick Alken <psa>
Project Administrator

 

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    Follows 1 latest change.

    Date Changed by Updated Field Previous Value => Replaced by
    2013-07-12 psa Summarymore efficient algorithm for 3j,6j,9j calculations => more efficient algorithm for 3j,6j,9j calculations (gsl_sf_coupling_{3j,6j,9j}_e

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