bugGNU Scientific Library - Bugs: bug #49465, initialize newton and steffenson...


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bug #49465: initialize newton and steffenson solvers with GSL_FN_FDF_EVAL_F_DF

Submitter:  Leo Singer <lpsinger>
Submitted:  Fri 28 Oct 2016 08:15:20 AM UTC
Category:  Performance Severity:  3 - Normal
Operating System:  Status:  None
Assigned to:  None Open/Closed:  Open

Fri 28 Oct 2016 08:15:20 AM UTC, original submission:  

The attached patch causes the Newton and Steffenson one-dimensional root finders to initialize using GSL_FN_FDF_EVAL_F_DF rather than GSL_FN_FDF_EVAL_F and GSL_FN_FDF_EVAL_DF. This should result in faster initialization for problems where the function and derivative are expensive to evaluate and involve redundant calculations.

Leo Singer <lpsinger>


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  • -email is unavailable- added by lpsinger (Submitted the item)

    Follows 1 latest change.

    Date Changed by Updated Field Previous Value => Replaced by
    2016-10-28 lpsinger Attached File- Added 0001-initialize-newton-steffenson-solvers-with-GSL_FN_FDF.patch, #38826

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