linalg

lstsq(x, y, rep_x, rep_y)	Computes a solution to the least squares problem of a system of linear equations with equivariance constraints.
invariant_orthogonal_projector(rep_x[, ...])	Computes the orthogonal projection to the invariant subspace.
equiv_orthogonal_projection(W, rep_x, rep_y)	Orthogonally project a linear map onto \(\mathrm{Hom}_{\mathbb{G}}(\rho_{\mathcal{X}},\rho_{\mathcal{Y}})\).
equiv_orthogonal_projection_coefficients(W, ...)	Return the flattened homomorphism-basis coefficients of \(\Pi_{\mathrm{Hom}_{\mathbb{G}}}(\mathbf{W})\).
project_in_isobasis(W, rep_x, rep_y[, ...])	Project W onto \(\mathrm{Hom}_{\mathbb{G}}(\rho_{\mathcal{X}}, \rho_{\mathcal{Y}})\) in isotypic coordinates
irrep_radii(x, rep)	Compute Euclidean radii for all irreducible-subspace features.
isotypic_signal2irreducible_subspaces(x, rep_x)	Flatten an isotypic signal into its irreducible-subspace coordinates.