Hi all, Is there a feature in Maple to collaborate? I mean: is it possible to work at the same maple file from 2 different computers simultaneously and join the results? It would be great if there's the possibility to work in real-time together, but comparing the files after editing and combining the changes to both documents in one Maple file is already satisfying. Thanks in advance for your advice. Giel

Hi, I'm trying to solve a non-linear difference equation numerically, but I receive following error: "Error, (in DEtools/convertsys) unable to convert to an explicit first-order system" I filtered the essential parts out of my code: a:=t->T(t)/m(t)-G0*m_aarde/(R_aarde+y(t))^2;

ss:=dsolve({Diff(y(t),t,t)=a(t),y(t0)=0,diff(y(t),t)(0)=0},{y(t)},numeric,method=gear,output=array([seq(k,k=1..astappen)]));