Hello,
In FreeFEM, is it possible to deal with a time dependent non linear problem like this one :
\nabla^2 A = - \sigma(dA/dt) * dA/dt
with sigma, a non linear function.
I saw that I must use a uold
variable for the time-dependent part, and uu
for the non linear part, but how can I mix both of them. Should I create a uuold
maybe ?
Thank you in advance,
Best regards,
Jeremie