I need help with a Sturm Liouville eigenvalue problem using Matlab, please provide the code and the graph for it. Thank you

3. Recently, we worked through an example in class where we modeled diffusion if a substance out of a membrane. The problem was defined using the following ODE, boundary conditions, and initial conditions: du ? 0,x=-hu and u(x,0)=f(x) Our analytical solution was u(x,t) - n=1 with An and f (x)sin( Anx)dx For f(x)-10, h 0.5, L-1, and k 0.03, plot this solution in Matlab @ t 0.1, 0.5, 1.0, 2.0, 5.0, and 10.0], using the first 20 terms in the series as an approximation 3. Recently, we worked through an example in class where we modeled diffusion if a substance out of a membrane. The problem was defined using the following ODE, boundary conditions, and initial conditions: du ? 0,x=-hu and u(x,0)=f(x) Our analytical solution was u(x,t) - n=1 with An and f (x)sin( Anx)dx For f(x)-10, h 0.5, L-1, and k 0.03, plot this solution in Matlab @ t 0.1, 0.5, 1.0, 2.0, 5.0, and 10.0], using the first 20 terms in the series as an approximation