https://tomoki-yamashita.github.io/CrySPY_doc/features/composition_constraint/index.htmlLast updated: October 16, 2026 From version 1.5.0, the composition range explored by EA-vc can be restricted. Specify min_comp and max_comp in the [structure] section of cryspy.in. These constraints apply to both random structure generation and structure generation by evolutionary operations. Composition constraints can be used for binary and ternary systems, as well as systems with four or more components. Plots of the allowed composition region and search results are available for binary and ternary systems.Hugoen-us