If a crack in the ice appears

22 hours to go. We get a choice of questions in this exam - two of three questions from each of three sections. I have a few things to try and avoid in each section. In ascending order of horribleness:

• Section A
• Lagrange multipliers (come on, I've only got three hours)
• Section B
• Lyapunov functions (as above)
• Section C
• Fourier series (you want me to memorise what and integrate how?)
• Dirichlet boundary conditions (come on, I've still only got three hours)

I also have a few things that I need to look up in the next 22 hours. How to do the Jordon Canonical Form thing for LHCC systems. How to integrate by parts. How to expand a Fourier series - because I should know it and it really isn't that hard.

Am I ready? When exams are concerned, I'm never ready.