pytc.legacy.df.solve_least_squares

pytc.legacy.df.solve_least_squares(C, rho)

Solve least squares problem for interpolation coefficients. :param C: Selected columns (N_b*N_b, n_rank, *trailing_dims) :param rho: Original tensor (N_b*N_b, N_grid, *trailing_dims)

Returns:

Interpolation coefficients (n_rank, N_grid, *trailing_dims)

Return type:

xi

Parameters:

• C (numpy.ndarray)

• rho (numpy.ndarray)