Question: How to sketch 3D graph finite string problem of wave equation in partial differential equation using maple?

 

How to sketch 3D graph finite string problem of wave equation in partial differential equation using maple?

utt = 4uxx

boundary conditions : u (0,t) = (5,t) = 0 , t>0 ,

initial conditions : u (x,0) = f(x) = { 0, 0<x<4      , (5-x) , 4<x<5 

                         u(x,0) = 0 , 0<x<5

 

how to sketch 3D graph for solution of the corresponding partial differential equations ?? 

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