Yes I know you need the worksheet... I'm sending message on another pc because mine has problem to connect but I'll be able to give the worksheet this evening.
By the way, I followed your help link on maple (?dsolve/numeric/DAE) and I finally, obtain the odeplot that I wanted. The problem was that maple wanted to evaluate the fonction just after the intial one and cannot because it was blocked with my constants values (g,l[1],l[2],etc...). I entered their values just before the calculus and it was done !

But the problem that's still remaining is plotting theta[1] and theta[2]. We will see it when I post the worksheet.

So thank you for your quick response and see you later.

Tranchant Henri

Yes I know you need the worksheet... I'm sending message on another pc because mine has problem to connect but I'll be able to give the worksheet this evening.
By the way, I followed your help link on maple (?dsolve/numeric/DAE) and I finally, obtain the odeplot that I wanted. The problem was that maple wanted to evaluate the fonction just after the intial one and cannot because it was blocked with my constants values (g,l[1],l[2],etc...). I entered their values just before the calculus and it was done !

But the problem that's still remaining is plotting theta[1] and theta[2]. We will see it when I post the worksheet.

So thank you for your quick response and see you later.

Tranchant Henri