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**Bert****Member**- Registered: 2006-05-09
- Posts: 1

Hello,

I have a big problem with changes of variables in a differential equation given is

Now I won't to change the rule of x and y then first of all you need to recalculate the differentiates.

The first (easy)

But then who can you calculate the second one? eventual the tird en so on??

Greets thanks.

*Last edited by Bert (2006-05-09 22:25:58)*

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**liuv****Member**- Registered: 2006-05-14
- Posts: 29

:)

*Last edited by liuv (2006-05-16 02:49:16)*

I'm from Beijing China.

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