This question is about the Basismatrix in the context of Linear Programming.
Basically (haha!) we have the Matrix of the standard (or normal) form, which consists of (A|E) with the coefficient matrix A and the identity matrix E.
How do you call this matrix? Maybe you could call it H but that could lead to confusion with the Hamiltonian and seems quite unusual. Or call it still A but with a remark that I have two different A's in my document? Or is it possible to use another typeset? Could you recommend a better alternative?