lbfm-rwth/carat

CARAT is a C toolkit for mathematical crystallography, with command-line programs and reusable algorithms for groups, lattices, and their symmetries. A typical user invokes a task-specific program with matrix or group data, computes a classification or transformation, and receives results through the program’s output. The tree identifies distinct workflows for isometry, subgroup and extension analysis, Bravais groups, and Voronoi geometry. The README gives only a high-level product description, and sampled excerpts are incomplete, so links between many command-line entry points and their library algorithms are intentionally not inferred.