Computing symmetric determinantal representations
Computing symmetric determinantal representations
We introduce the DeterminantalRepresentations package for Macaulay2, which computes definite symmetric determinantal representations of real polynomials.We focus on quadrics and plane curves of low degree (i.e.cubics and quartics).Our algorithms are geared towards speed and robustness, employing linear algebra and numerical algebraic geometry, without genericity assumptions on the polynomials.