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Question
Is there any one who can help me how to sum the following summation expression? I tried but it said to many inputs. Thank you for your help!
U(x,y) = ∑[∝.ϕ1(x) + β.ϕ2(x)].ψ(y), the summation is k : 0 --> infinity. Where ψ(y)=sin(kπy), b=√(1/(2ϵ)^2 +(k...
bijna 9 jaar ago | 1 answer | 0
1
answerQuestion
How to Integrate a matrix using 'dblquad'
For example, I have tried as the following: syms x y; Let u(x,y)= x.*exp(x+y), be the exact function. fun = inline('x.*...
bijna 10 jaar ago | 0 answers | 0
0
answersQuestion
How to integrate a matrix using dblquad to find Energy error
I needed a little advise on how to find the ‘Energy-Error'. For example, let the finite elements be square , let A =...
bijna 10 jaar ago | 0 answers | 0
0
answersQuestion
How to express a matrix in terms of matrices and how to integrate a matrix using dblquad and summing
For example, I used bi-linear square finite elements and assuming A = the finite element solution matrix ( 9x9), u(...
bijna 10 jaar ago | 0 answers | 0
0
answersQuestion
Please help me how to describe a matrix in terms of smaller matrices.
For example, Let A=[1 2 3; 4 5 6; 7 8 9 ] and A11 = [ 1 2; 4 5] , A12 = [ 2 3 ; 5 6] , A21 = [ 4 5 ; 7 8], ...
bijna 10 jaar ago | 1 answer | 0
