# Media

Provided are the formulations and concepts to define frequency-dependent dielectric media and anisotropic media (3D).

Provided are the formulations and concepts to define frequency-dependent dielectric media and anisotropic media (3D).

**Dielectric Media (Frequency-Dependent)**

The frequency-dependent dielectric media formulations supported in the Solver are Debye relaxation, Cole-Cole, Havriliak-Negami, Djordjevic-Sarkar and frequency list (linear interpolation).**Anisotropic Media (3D)**

The anisotropic media formulations supported in the Solver are diagonalised tensor, full tensor, complex tensor and Polder tensor (for ferrites).