[Ktechlab-devel] simulator

[Glen]

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If you can write the equation on paper, can you not also write the
simple steps to solving it?

f(i) is too complex. Write (1/2i * log(i)) instead. log(i) should be
built-in.. not the whole equation. Improvements to the models shouldn't
be dependent on improvements to the system as a whole.

- --Glen

Celelibi wrote:

> 
> About embedding equations inside the XML. It will be possible describe every
> component with equations only if we can define our own functions.
> But defining a function is useless if you don't know how to solve equation
> containing it. So you need to define a way to solve any equation containing
> that function. But maths says it's not possible.
> Let me explain with a small example.
> You have a dipole for which current/voltage is such as u=f(i)+g(i). Of
> course, you want to calculate i from u. If f is a polynomial and g is
> something that deals with logarithm or exponential, a generic solver will
> have some pain to find something.
> What I try to explain is that embeding equation inside a component
> definition will lead to unsolvable problems.
> 
> I think a more powerful solution would be to make the XML say something like
> :
> MyComponent behave following That_Model with parameters "voltage in pin1",
> "current in pin2" etc.
> 
> I really really think embedding equations is a bad idea.
> 
> 
> Celelibi
> 
> 
> 
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