Hello,

I have no solution to this problem since 2 week ... Do you know if Maple have a specialised help center ??

Thanks !

@acer Hello, As kitonm said before here is an exemple that do not work :

And the file associed : convertsys.mw

Thanks you very much for your help...

@ThU Hi, I have try it but it is not working... Thanks anymore !

Yes this is my problem ... 

Hello,

Thanks you for your answer but when I tried YP__1 or YP[1] that doesn't work...

The result is from ODETools Convertsys... and I extract an equation from this result to Eq.

The equation is YP₁ = Y₂ but I cannot replace YP₁ with subs(YP__1=dGx, Eq); or subs(YP[1]=dGx, Eq);..

It always give me YP₁ = Y_2...

 I have try this I got the same problem : 

Hello, Thanks you very much ODETools is what I was loooking for !

Regards