hey friends I have solved linear equation numerically and in the end i have ploted pointplot graph where every point in graph is taken maunally. Please help me how to write code that at specific values of x required points from 

Solution := backsub(S) 

should automatically be ploted where x=i*h and h=1/32 where i varies from 0 to m. 

hey friends i know how to write vector column matrix for nth order but what if i want it somehow like the one  attached in file matrix.mw

what should i do to write matirx of this form in maple  for nth order

[1        4        1                                    ]

[B_-1,0   B_0,0   B_1,0                                   ]

hi friends i have done with my code but still getting error in summation term. Please help me out. ThanksFractional_(1).mw

hi please let me know how to write the required values of U(0,0), U(1,0),...,U(M,0) in vector column matrix

h := 1/4;

k := 1/4;

r := k/h^2;

m := 4; n := 4:

for i from 0 to m do

U[i, 0] := evalf(cos(Pi*i*h))

od;