num::operators::backward_euler_2d¶
Defined in header <pde/grid_operators.hpp>
class backward_euler_2d final;
mat-free 2D Backward Euler operator \(I - \text{coeff} \cdot \nabla^2\) with spmat materialization.
Members¶
| member | description |
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using domain_type = vec<real> |
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using codomain_type = vec<real> |
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using laws = law::list<law::spd> |
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backward_euler_2d(int N, double coeff) |
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void apply(const vec<real> &x, vec<real> &y) const |
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idx rows() const noexcept |
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idx cols() const noexcept |
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int N() const noexcept |
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double coeff() const noexcept |
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spmat to_sparse() const |
Materialize the Backward Euler system matrix as an assembled CSR spmat. |