25Float u_ex (
const point& x) {
return - 1./12 + (x[0]*(1-x[0]) + x[1]*(1-x[1]) + x[2]*(1-x[2]))/(2.*
N); }
26int main(
int argc,
char**argv) {
28 Float error_linf_expected = (argc > 1) ? atof(argv[1]) : 1e+38;
30 const space& Xh = uh.get_space();
31 N = Xh.get_geo().dimension();
33 field eh = pi_h_u - uh;
37 derr <<
"error_l2 " << sqrt(m(eh,eh)) << endl
38 <<
"error_h1 " << sqrt(fabs(a(eh,eh))) << endl
39 <<
"error_linf " << eh.max_abs() << endl;
40 return (eh.max_abs() <= error_linf_expected) ? 0 : 1;
see the Float page for the full documentation
see the field page for the full documentation
see the point page for the full documentation
see the environment page for the full documentation
see the space page for the full documentation
see the test page for the full documentation
see the test page for the full documentation
This file is part of Rheolef.
std::enable_if< details::has_field_rdof_interface< Expr >::value, details::field_expr_v2_nonlinear_terminal_field< typenameExpr::scalar_type, typenameExpr::memory_type, details::differentiate_option::gradient > >::type grad(const Expr &expr)
grad(uh): see the expression page for the full documentation
field_basic< T, M > lazy_interpolate(const space_basic< T, M > &X2h, const field_basic< T, M > &u1h)
see the interpolate 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
rheolef::std enable_if ::type dot const Expr1 expr1, const Expr2 expr2 dot(const Expr1 &expr1, const Expr2 &expr2)
Float u_ex(const point &x)
rheolef - reference manual