Solving an equation that depends upon itself

[mschyma]

Hi,

i have got to solve an equation that depends upon itself. I have attached the mathcad file.

When i try to evaluat the solution at a certain value of t, i get the message that the evaluation leads to an infinite recursion.

Im thankful for every support.

Kind regards,

Markus

[LucMeekes]

That's a nasty implicit equation you have there.

If I remove all (t)'s I get:

But for t=0, notice that ig(t) and u(t) are zero, so you get L(0)as:

Hope this helps.

Luc

[Fred_Kohlhepp]

[LucMeekes]

That's a different best you're dealing with, Fred. Look at how you placed ig.

And also notice how it kept L on the rhs.

So it's still implicit and not 'solved'.

Luc

[LucMeekes]

Now if you dress up the equation to something like:

Look at the scale, not much variation in L(t)

Does this come any near to what you expect(ed)?

Luc

[Fred_Kohlhepp]

Sometimes a solve block is the short answer.

[MJG]

What about a solve block?

[mschyma]

Thank you very much, i was able to solve the problem with your help.

Kind regards,

Markus