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Re: [Help-gsl] ode version and compilers
From: |
Rhys Ulerich |
Subject: |
Re: [Help-gsl] ode version and compilers |
Date: |
Tue, 5 Nov 2013 09:19:49 -0600 |
> Also, I found that numerical results by 1.16 and 1.15 are different (less
> than 0.1%). I doubt it is because of revision 4771. I have modified the
> source code of 1.16 to undo revision 4771. And I found that, without 4771,
> results by 1.16 and 1.15 are the same with each other. So, I question
> whether revision 4771 do a better job or a worse job, in terms of accuracy.
It is possible that something subtle is happening (as I've not traced
through the logic in detail), but I am uncertain how copying the
result of a deterministic calculation is losing accuracy relative to
recomputing it.
- Rhys
- Re: [Help-gsl] ode version and compilers, Alan Fung, 2013/11/05
- Re: [Help-gsl] ode version and compilers, Alan Fung, 2013/11/05
- Re: [Help-gsl] ode version and compilers, Rhys Ulerich, 2013/11/05
- Re: [Help-gsl] ode version and compilers, Tuomo Keskitalo, 2013/11/05
- Re: [Help-gsl] ode version and compilers, Alan Fung, 2013/11/05
- Re: [Help-gsl] ode version and compilers, Rhys Ulerich, 2013/11/06
- Re: [Help-gsl] ode version and compilers, Alan Fung, 2013/11/06
- Re: [Help-gsl] ode version and compilers, Tuomo Keskitalo, 2013/11/06