1. The problem statement, all variables and given/known data Solve the Laplace equation: delta u = d2u/dx2+d2u/dy2 inside the half disk 0<r<R, 0<phi<pi Temperature on the bottom side of the disk is zero, u(x,y=0)=0. Temperature on the upper side of the disk is u(r=R, theta) = u0(phi), 0<phi<pi 2. Relevant equations I'm assuming the Laplace equation and the given bc conditions 3. The attempt at a solution I attempted the solution, which I think up until this point is correct, but I've gotten stuck trying to figure out the constants. http://img708.imageshack.us/img708/707/p2150074.jpg [Broken] Thank you all for your help.