NOLINTNEXTLINE(readability-convert-member-functions-to-static)

3-way branch, phase shift = phase_node_x - phase_internal_node the clock_12 and clock_13 is reverted because clock_12 is the phase shift node_1 - node

phase shift is theta_from - theta_to

The variance is not scaled as an approximation under the assumptions of: - linearization of obtaining the current from power measurements - voltages a

Calculate the Jacobian and deviation

Prepare matrix calculates injected current, i.e., RHS of solver for each iteration.

@brief Adds contribution of global angle branch current measurements.

@brief Adds contribution of local angle branch current measurements. Logic is similar to power measurements, but with an additional voltage division a

@brief Adds contribution of branch power measurements to the G(r, r), G(r, c) and eta_r blocks, given the iteration passes through (r, c), i.e., row,

process objects in batch for shunt, load_gen, source return the status of the object type, if all the connected objects are measured

R_ii = -variance, only diagonal assign variance to diagonal of 3x3 tensor, for asym

@brief Processes common part of all elements to fill from an injection measurement. Also includes zero injection constraint. This would be H, N, M, L

@brief Process Lagrange multiplier eta_i(i) = sum( Q^T(j,i) * phi(j) ) for j = 1 to n_bus @param y_bus

@brief Adds contribution of G(i, i) form the shunt. Note: The sign of Y_s is inverted per injection direction. @param block LHS(i, i) @param rhs_bloc

@brief G(row, row) += w_k eta(row) += w_k . (z_k - f_k(x)) In case there is no angle measurement, the slack bus or arbitray bus measurement is consid

A string representation of the components to which this error applies

A string representation of the reference value. E.g. 'zero', 'one', 'field_a and field_b' or '123'.

re-order dfs_node using minimum degree return list of fill-ins when factorize the matrix