Hi,
Can someone explain to me NDSolvePDE.
At this link, there is an example to solve pde by using MOL. I don'n understant what this part
https://reference.wolfram.com/mathematica/tutorial/NDSolvePDE.htmlListCorrelate[{1, -2, 1}/Subscript[h, n]^2,
U[t], {1, 2}, {Subscript[u, n - 1][t]}]
What is the meaning of 1,-2,1 and 1,2 in U
I get {1, -2, 1} this part, they are just coeff. of finite difference..
How can modify the code on that link to solve u_t=u_xx+u_x
Any help will appreciate it..