Marco Caliari schrieb:
>> Then yes, you're absolutely right. I've never investigated complex
>> problems before, so I expect there must be more changes that need to
>> be done in the m-files to handle these kind of problems.
>>
>>> I think I will have some time to further investigate the codes (a
> Then yes, you're absolutely right. I've never investigated complex problems
> before, so I expect there must be more changes that need to be done in the
> m-files to handle these kind of problems.
>
>> I think I will have some time to further investigate the codes (at least,
>> the m-files).
>
Marco Caliari schrieb:
>>> other solvers): at line 336, it should be
>>>
>>> vdelta = abs(y5 - y4);
>
>> So number of evaluations and steps increased dramatically. I can see
>> the same for ode45..ode78. Can you send an example where I can see
>> results becoming better if I use your modificatio
David Bateman wrote:
>
>> Yes that would be preferable but I don't think Octave (3.0.0) keeps
>> track of if the matrix is symmetric (pos def), at least a test I did
>> with for example,
>>
>>
>
> A = diag(1:4,1) + 10*eye(5) + diag(1:4,-1);
> matrix_type (A)
> ans = Positive Definite
> b =
Tomas Kubin wrote:
> Hello,
>
> function xmlread.oct (miscellaneous-1.0.5) does not read an attribute
> encoding in XML declaration
>
>
>
> however, I think, it is valid attribute.
> Is it my mistake or a bug?
>
> Regards
> Tomas
>
This xml read function is extremely limited, and is basically
Tatsuro MATSUOKA wrote:
> Hi David
>
> --- David Bateman <[EMAIL PROTECTED]> wrote:
>
>
>> Err can you point me to it.. I seem to have missed it.
>>
>>
> At that time you were too busy.
>
> http://sourceforge.net/mailarchive/forum.php?thread_name=20080322120239.GE4753%40heima.gjk.dk&forum
Hello,
function xmlread.oct (miscellaneous-1.0.5) does not read an attribute
encoding in XML declaration
however, I think, it is valid attribute.
Is it my mistake or a bug?
Regards
Tomas
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Fredrik Lingvall wrote:
>
>> I don't know the numerical details of the different methods (e.g.
>> chol2logdet vs. qr2logdet). In a similar way, I don't know if I should
>> invert a matrix using SVD or QR. I really love that when I compute the
>> inverse of a matrix using 'inv', Octave choo
>> other solvers): at line 336, it should be
>>
>> vdelta = abs(y5 - y4);
> So number of evaluations and steps increased dramatically. I can see the same
> for ode45..ode78. Can you send an example where I can see results becoming
> better if I use your modification?
vdelta is an error estimat
