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FEATool Multiphysics
v1.16.5
Finite Element Analysis Toolbox
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FEATool Multiphysics
v1.16.5
Finite Element Analysis Toolbox
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ASSEMBLEF Finite element assembly of linear form (rhs/load vector).
[ F ] = ASSEMBLEF( FORM, C_SFUN, C_COEF, ICUB, P, C, A, SIND, N_CMAX, PROB ) Assembles a finite element linear form (right hand side/load vector). Each column in FORM specify one linear additive term to compute. The FORM entries denote either function values or derivatives to evaluate. C_COEF specifies the coefficients to evaluate for each term in FORM. C_SFUN indicates which shape functions to use for the evaluation.
Input Value/[Size] Description
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form [n_forms] Linear forms to compute and add
1 - function value
2,3,4 - x,y,z -derivatives
c_sfun string Shape functions used for the trial space
c_coef [n_forms] Coefficients to multiply/scale each form
i_cub scalar Numerical integration rule
p [n_sdim,n_p] Array with grid point coordinates
c [n_vert,n_cells] Array with cell connectivities, for each
cell (column) points to vertices in p
a [n_vert,n_cells] Array with cell adjacency info, for each
cell (column) points to cell neighbours
sind [n_cells] Subdomain indices
n_cmax scalar {50000} (optional) Max number of cells to assemble
for at once (to limit memory consumption)
prob struct Finite element problem struct, (optionally)
used for evaluating the coefficients
.
Output Value/[Size] Description
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f [n_f] Right hand side/load vector