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: PerformanceSeverity: 3 - Normal
Operating System: Status: None
Assigned to: NoneOpen/Closed: Open

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
    Fri 12 Jul 2013 04:09:37 PM UTCpsaSummarymore 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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