Abstract: In order to solve the difficulties while computing the element stiffness matrix of spatial beam and to improve its computing efficiency, works were carried out by the capabilities symbolic ...

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%Create the coefficient matrix A. A = [1 3 -2 0 2 0; 2 6 -5 -2 4 -3; 0 0 1 5 0 3; 1 3 0 4 2 9] %Create the column matrix b of constants. %Remember, to create a column matrix, the rows are separated by ...

Abstract: The transmission-line modeling (TLM) used for nonlinear finite-element (FE) solution has a paramount feature that the admittance matrix is unchanged and only needs one-time factorization; ...

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