OK I found it... It's system of equations
Le lundi 8 août 2016 12:57:34 UTC+2, Henri Girard a écrit : > > Hi, > I read somewhere in your doc, the way to solve DE in a matrix... Sorry but > I can't remenber which example, I have been looking back but can't see it > again ? > Could you guide me to this ? > Regards > Henri >