ut3_norm_orthogonalized

t3toolbox.backend.ut3_linalg.ut3_norm_orthogonalized(x)

def ut3_norm_orthogonalized(x: UT3Data) -> NDArray:  # HS norm, shape=stack_shape

Hilbert-Schmidt norm of an already-left-orthogonalized uniform T3 (the frontend left-orthogonalizes first): masks + squashes, then the norm is the Frobenius norm of the last TT core (all others are orthonormal). Mirrors the ragged t3_norm fast path.

Parameters:

x (UT3Data)

Return type:

NDArray