Rheolef  7.2
an efficient C++ finite element environment
 
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sinusprod_laplace.h
Go to the documentation of this file.
1
25#include "sinusprod.h"
26struct 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;
31};
32struct 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};
see the Float page for the full documentation
see the point page for the full documentation
The sinus product function.
Definition cavity_dg.h:29
point operator()(const point &x) const
Definition cavity_dg.h:30
f(size_t d1)
const Float pi
u_exact _u
Definition cavity_dg.h:25
size_t d
point operator()(const point &x) const
Definition cavity_dg.h:26
g(size_t d1)
const Float pi
Float pi