I have written the code in Maple for Heat equation with Neumann B.C. Could anyone check it? I will be very grateful!Heat equation: diff(u(x,t),t)=diff(u(x,t),x,x);Initial condition: U(x,0)=2*x;Boundary conditions: Ux(0,t)=0; Ux(L,t)=0;I use centered difference approximation for the Neumann conditions. For my case:1 http://s018.radikal.ru/i515/1405/a4/ec9a874377a5.jpgThe code:  2 http://s006.radikal.ru/i214/1405/54/7f770ce86447.jpgI really do not know about my mistakes. I know how to solve it with Dirichle B.C. But I do not know how to write the code in Maple for Neumann B.C.Thank You!
Heat equation with Neumann B.C. in Maple
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