   Pseudo arc length continuation
  Hi...I'm searching for info on pseudo arc length continuation method. But i can't find something that can guide me from the ground up. I have a non-linear equation F(u, lamda) = 0, where u = u(x, y) and lamda = scalar. This must be solved for various values of lamda (in the range [0, 10]). I have implemented a Newton solver which results in good solutions for some of the possible values of lamda (range [0, 6.5)), but for the rest ([6.5, 10]) it can't converge.Because there is a discontinuity at the specified point (lamda = 6.5) i've searched the net for info on how this can be solved. And i found that pseudo arc length continuation method can solve it, but i couldn't find something easy to follow.Do you know any paper/tutorial on the subject which is easy to follow and understand? All of the papers i found assumed that i have prior knowledge on the subject, but unfortunatelly i don't!Any suggestion/comment/link is appreciated. Thanks in advance.HellRaiZer   