num::pde::diffusion_step_2d_4th_dirichlet

Defined in header <pde/diffusion.hpp>

void diffusion_step_2d_4th_dirichlet(vec<real> &u, int N, double coeff);  // (1)

void diffusion_step_2d_4th_dirichlet(scalar_field_2d &g, double coeff);  // (2)

One explicit diffusion step with the fourth-order stencil and zero Dirichlet boundaries.