Solve using matlab 1)Discretizing the differential equation 2)Simplify to the form Ax = b 3) Matlab solution for x

A fin of diameter 0.02m and length 0.08m is attached to a wall. The temperature at the wall is 200C. Determine the temperature of the fin at x=0.02,0.04,0.06 and 0.08m, using finite difference technique taking four parts. The thermal conductivity of the rod is 25W/mK and convective heat transfer coefficient from rod to surroundings is 40W/m2K. The governing differential equation is dx2d2+kAhP=0,where=TTsurr=T25, and the boundary condition at x=0.08m is dxd+kh=0