Rheolef  7.1
an efficient C++ finite element environment
sinusprod_laplace.h
Go to the documentation of this file.
1 #include "sinusprod.h"
26 struct f {
27  Float operator() (const point& x) const { return d*sqr(pi)*_u(x); }
28  f(size_t d1) : d(d1), _u(d1), pi(acos(Float(-1))) {}
29  size_t d;
30  u_exact _u; Float pi;
31 };
32 struct g {
33  Float operator() (const point& x) const {
34  switch (d) {
35  case 0: return 0;
36  case 1: return -pi;
37  case 2: return -pi*(sin(pi*x[0]) + sin(pi*x[1]));
38  default: return -pi*( sin(pi*x[0])*sin(pi*x[1])
39  + sin(pi*x[1])*sin(pi*x[2])
40  + sin(pi*x[2])*sin(pi*x[0]));
41  }
42  }
43  g(size_t d1) : d(d1), pi(acos(Float(-1))) {}
44  size_t d; Float pi;
45 };
sinusprod.h
The sinus product function.
f::f
f(size_t d1)
Definition: sinusprod_laplace.h:28
g::g
g(size_t d1)
Definition: sinusprod_laplace.h:43
g::d
size_t d
Definition: sinusprod_helmholtz.h:45
f::d
size_t d
Definition: cosinusprod_dirichlet.h:30
g::pi
const Float pi
Definition: cosinusprod_laplace.h:35
f::operator()
point operator()(const point &x) const
Definition: cavity_dg.h:30
Float
see the Float page for the full documentation
f::_u
u_exact _u
Definition: sinusprod_dirichlet.h:30
u_exact
Definition: interpolate_RTk_polynom.icc:125
point
see the point page for the full documentation
f::pi
const Float pi
Definition: cosinusprod_dirichlet.h:30
g::operator()
point operator()(const point &x) const
Definition: cavity_dg.h:26
g
Definition: cavity_dg.h:25
f
Definition: cavity_dg.h:29
g::pi
Float pi
Definition: sinusprod_laplace.h:44