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Topic: How to add the solver's option in Simulink's s-function
Replies: 9   Last Post: Jan 1, 2013 4:53 AM

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workaholic

Posts: 51
Registered: 4/21/08
Re: How to add the solver's option in Simulink's s-function
Posted: Feb 11, 2009 3:54 AM
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On 2?9?, ??3?25?, workaholic <liua...@gmail.com> wrote:
> Actually,my equation is like:
>
> M*dy = f(y).
>
> Although M is nonsingular, but the inv(M) is very complicated, and
> when put to the right side,it turns out to be abnormal output of some
> of the states stay zero. So I have to use the Mass option in the
> odeset.
>
> And f(y) is so complicated a nonlinear equation that I can't draw it
> out in Simulink using small nonlinear blocks.So I have to use the s-
> function block.
>
> So where to add the options in s-funtion block in Simulink? I looked
> up the docs of s-function but it seems that there is no guidance there
> for such a case, then how can I do? Is there anyway to convert the
> equation to another form?
>
> Thanks in advance!


Can I utilize the level 2 m-function? Can it help?



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