an efficient C++ finite element environment
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The Poisson problem by the hybrid discontinuous Galerkin method
int main(
int argc,
char**argv) {
string approx = (argc > 2) ? argv[2] : "P1d";
Float n = (argc > 3) ? atof(argv[3]) : 1;
space Th (omega, approx,
"vector"),
Xh (omega, approx),
Yh = Th*Xh,
Mh (omega["sides"], approx);
Mh.block("boundary");
space Wh(Mh.get_geo()[
"boundary"],approx);
size_t d = omega.dimension();
size_t k = Xh.degree();
auto tau = y[0], v = y[1];
field kh(Mh,0), lambda_h(Mh,0);
field xh = inv_a*(
lh -
b.trans_mult(lambda_h));
}
see the catchmark page for the full documentation
rheolef::std enable_if ::type dot const Expr1 expr1, const Expr2 expr2 dot(const Expr1 &expr1, const Expr2 &expr2)
dot(x,y): see the expression page for the full documentation
see the field page for the full documentation
details::field_expr_v2_nonlinear_terminal_function< details::normal_pseudo_function< Float > > normal()
normal: see the expression page for the full documentation
std::enable_if< details::is_field_expr_v2_nonlinear_arg< Expr >::value &&! is_undeterminated< Result >::value, Result >::type integrate(const geo_basic< T, M > &omega, const Expr &expr, const integrate_option &iopt, Result dummy=Result())
see the integrate page for the full documentation
details::field_expr_v2_nonlinear_terminal_function< details::h_local_pseudo_function< Float > > h_local()
h_local: see the expression page for the full documentation
see the space page for the full documentation
space_mult_list< T, M > pow(const space_basic< T, M > &X, size_t n)
The sinus product function – right-hand-side and boundary condition for the Poisson problem.
std::enable_if< details::is_field_convertible< Expr >::value,details::field_expr_v2_nonlinear_terminal_field< typename Expr::scalar_type,typename Expr::memory_type,details::differentiate_option::divergence >>::type div_h(const Expr &expr)
div_h(uh): see the expression page for the full documentation
rheolef - reference manual
see the integrate_option page for the full documentation
std::enable_if< details::is_field_expr_v2_variational_arg< Expr >::value,details::field_expr_quadrature_on_sides< Expr > >::type on_local_sides(const Expr &expr)
on_local_sides(expr): see the expression page for the full documentation
field_basic< T, M > interpolate(const space_basic< T, M > &V2h, const field_basic< T, M > &u1h)
see the interpolate page for the full documentation
see the environment page for the full documentation
field lh(Float epsilon, Float t, const test &v)
int main(int argc, char **argv)
This file is part of Rheolef.
see the test page for the full documentation
see the problem page for the full documentation
see the Float page for the full documentation
see the test page for the full documentation
odiststream dout(cout)
see the diststream page for the full documentation
csr< T, sequential > trans(const csr< T, sequential > &a)
trans(a): see the form page for the full documentation
see the geo page for the full documentation