Rcpp_Spectrahedron: An Rcpp class to represent spectrahedra, exposed to R via modules.
Description
A spectrahedron is a convex body defined by a linear matrix inequality of the form \(A_0 + x_1 A_1 + ... + x_n A_n \preceq 0\).
The matrices \(A_i\) are symmetric \(m \times m\) real matrices and \(\preceq 0\) denoted negative semidefiniteness.