an efficient C++ finite element environment
|
|
Go to the documentation of this file.
29 int main (
int argc,
char **argv) {
31 Float tol = (argc > 1) ? atof(argv[1]) : 1e-10;
36 derr <<
"# t\terror_l2\terror_linf" << endl;
39 Float err_linf_linf = 0;
40 for (
Float t = 0, t_prec = 0;
din >> get (t, phi_h); t_prec = t) {
41 const space& Xh = phi_h.get_space();
42 size_t d = Xh.get_geo().dimension();
49 err_l2_l2 += sqr(err_l2)*(t - t_prec);
50 err_linf_linf = max(err_linf_linf, err_linf);
51 dout <<
put (t, phi_h, pi_h_phi);
52 derr << t <<
"\t" << err_l2 <<
"\t" << err_linf << endl;
54 derr <<
"# error_l2_l2 = " << sqrt(err_l2_l2) << endl;
55 derr <<
"# error_linf_linf = " << err_linf_linf << endl;
56 return (err_linf_linf <= tol) ? 0 : 1;
void put(std::ostream &out, std::string name, const tiny_matrix< T > &a)
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
Float phi(const point &nu, Float a, Float b)
see the space page for the full documentation
Convection-diffusion equation – the rotating hill benchmark.
rheolef - reference manual
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
odiststream derr(cerr)
see the diststream page for the full documentation
see the Float page for the full documentation
see the branch page for the full documentation
int main(int argc, char **argv)
see the test page for the full documentation
odiststream dout(cout)
see the diststream page for the full documentation