Eigenvalues of the diffusion operator. More...
Detailed Description
Eigenvalues of the diffusion operator.
Finds the eigenvalues the system:
\begin{align} \mathrm D^2 u(y)\,-\,4\,u(y) \;=\; 0, \end{align}
with homogenous Dirichlet boundary conditions , \(u(\pm 1) = 0\). where \( \mathrm D = \mathrm d/\mathrm d y \). Analytical solution: \(-4 - n^2\pi^2/4\)
Definition in file Ex_05.cpp.
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Typedefs | |
| typedef complex< double > | Cd_t |
Functions | |
| int | main () |
Typedef Documentation
◆ Cd_t
Function Documentation
◆ main()
| int main | ( | ) |
Definition at line 19 of file Ex_05.cpp.
References sis::Linop< T >::coef, sis::GeneralizedEigenSolver< T >::compute(), sis::GeneralizedEigenSolver< T >::eigenvalues, sis::BcMat< T >::eval, sis::BcMat< T >::L, sis::N, and sis::sis_setup().
