24 April 2023. The package ECHO1D is updated to version 1.3. The algorithm is changed to include the impedance boundary condition (IBC). The IBC allows to simulate the normal conductivity (NSE) and the anomalous skin effect (ASE).
17 February 2019. The package ECHO1D is updated to version 1.2. The algorithm is changed to avoid overflow errors for high conductive materials.