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Re: Successive Over-Relaxation ... what is wrong? Improvements?
From: |
c. |
Subject: |
Re: Successive Over-Relaxation ... what is wrong? Improvements? |
Date: |
Sun, 4 Nov 2012 17:45:25 +0100 |
On 4 Nov 2012, at 14:05, Joza wrote:
> Yea, for A = 10x10, for example, here is the result, with relaxation
> parameter = 1.4:
>
> ...
> x: 4.999998 iters: 710 norm: 0.0000010676089660
> x: 4.999998 iters: 711 norm: 0.0000003683371855
> x: 4.999998 iters: 712 norm: 0.0000006345346101
> x: 4.999998 iters: 713 norm: 0.0000007962736616
> x: 4.999998 iters: 714 norm: 0.0000008603756717
> x: 4.999998 iters: 715 norm: 0.0000008603756717
> x: 4.999998 iters: 716 norm: 0.0000008603756717
> x: 4.999998 iters: 717 norm: 0.0000008603756717
> x: 4.999998 iters: 718 norm: 0.0000008603756717
> x: 4.999998 iters: 719 norm: 0.0000008603756717
> x: 4.999998 iters: 720 norm: 0.0000008603756717
>
> ans =
>
> 5.0000
> 9.0000
> 12.0000
> 14.0000
> 15.0000
> 15.0000
> 14.0000
> 12.0000
> 9.0000
> 5.0000
>
> So it seems to work here?
>
not really, it actually seems to be stagnating.
I just tried a very simple implementation of the algorithm wiyh your parameters
and it converges within a tolerance of 1e-15 in about 170 iterations.
c.
- Re: Successive Over-Relaxation ... what is wrong? Improvements?, (continued)
- Re: Successive Over-Relaxation ... what is wrong? Improvements?, Joza, 2012/11/02
- Re: Successive Over-Relaxation ... what is wrong? Improvements?, Sergei Steshenko, 2012/11/03
- Re: Successive Over-Relaxation ... what is wrong? Improvements?, Joza, 2012/11/03
- Re: Successive Over-Relaxation ... what is wrong? Improvements?, Sergei Steshenko, 2012/11/04
- Re: Successive Over-Relaxation ... what is wrong? Improvements?, Joza, 2012/11/04
- Re: Successive Over-Relaxation ... what is wrong? Improvements?, Joza, 2012/11/04
- Re: Successive Over-Relaxation ... what is wrong? Improvements?,
c. <=
- Re: Successive Over-Relaxation ... what is wrong? Improvements?, Joza, 2012/11/04
- Re: Successive Over-Relaxation ... what is wrong? Improvements?, Sergei Steshenko, 2012/11/04
- Re: Successive Over-Relaxation ... what is wrong? Improvements?, Joza, 2012/11/04
- Re: Successive Over-Relaxation ... what is wrong? Improvements?, Ed Meyer, 2012/11/04
- Re: Successive Over-Relaxation ... what is wrong? Improvements?, Ed Meyer, 2012/11/04
- Re: Successive Over-Relaxation ... what is wrong? Improvements?, Joza, 2012/11/05
- Re: Successive Over-Relaxation ... what is wrong? Improvements?, Joza, 2012/11/05
- Re: Successive Over-Relaxation ... what is wrong? Improvements?, Sergei Steshenko, 2012/11/05
- Re: Successive Over-Relaxation ... what is wrong? Improvements?, Joza, 2012/11/06
- Re: Successive Over-Relaxation ... what is wrong? Improvements?, Joza, 2012/11/06