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Question: Numerical sol 2nd order pde

Question:Numerical sol 2nd order pde

mostibra 20 Maple
differential-equation wave
May 11 2015
1

d2u/dt2-(2*d2u/x2)+d2u/dxdt=0    

initial condition: u(x,0)=1-x, abslute x<1   Ut(x,0)=cos(pix), bslute x<1 

B.C U(-4,t)=U(4,t)=0,   delta x=0.1, delta t=0.025, range 0..4                                      
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