quantum-group: Exact SymPy verification of explicit U_q(sl_2) and GL_q(2|1) matrix identities
quantum-group is a small Python package that builds the explicit matrices behind concrete quantum-group calculations with exact SymPy arithmetic and checks each identity as an exact residual matrix. A nonzero residual entry locates the convention that disagrees: basis order, tensor placement, coproduct or, for superalg...