an efficient C++ finite element environment
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Go to the documentation of this file.
30 int main(
int argc,
char**argv) {
32 Float err_linf_expected = (argc > 1) ? atof(argv[1]) : 1e+38;
33 bool with_sigma = (argc <= 2) || argv[2] !=
string(
"-no-sigma");
34 field uh, lambda_h, sigma_h;
40 space Xh = uh.get_space();
41 geo omega = Xh.get_geo();
42 size_t k = Xh.degree();
43 size_t d = omega.dimension();
48 string opts = Xh.get_basis().option().stamp();
49 space Xh1 (omega,
"P"+
itos(k+1)+
"d"+opts);
51 Float err_u_linf = euh.max_abs();
54 derr <<
"err_u_l2 = " << err_u_l2 << endl
55 <<
"err_u_linf = " << err_u_linf << endl
56 <<
"err_u_h1 = " << err_u_h1 << endl;
59 space Th1 (omega,
"P"+
itos(k+1)+
"d"+opts,
"vector");
61 Float err_sigma_linf = esh.max_abs();
62 derr <<
"err_sigma_l2 = " << err_sigma_l2 << endl
63 <<
"err_sigma_linf = " << err_sigma_linf << endl;
65 if (!lambda_h.get_space().get_basis().option().is_restricted_to_sides()) {
66 space Mh = lambda_h.get_space();
72 pms.solve (kh, ph_lambda);
74 derr <<
"err_lambda_l2 = " << err_lambda_l2 << endl;
76 return (err_u_linf <= err_linf_expected) ? 0 : 1;
The sinus product function.
see the catchmark page for the full documentation
see the field 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
rheolef - reference manual
T norm2(const vec< T, M > &x)
norm2(x): see the expression page for the full documentation
see the integrate_option page for the full documentation
The sinus product function – its gradient.
int main(int argc, char **argv)
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
idiststream din
see the diststream page for the full documentation
see the environment page for the full documentation
This file is part of Rheolef.
see the test page for the full documentation
see the problem page for the full documentation
odiststream derr(cerr)
see the diststream page for the full documentation
see the Float page for the full documentation
void set_family(family_type type)
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::gradient >>::type grad_h(const Expr &expr)
grad_h(uh): see the expression page for the full documentation
see the test page for the full documentation
std::string itos(std::string::size_type i)
itos: see the rheostream page for the full documentation
see the geo page for the full documentation