uint8_t fsolve(uint8_t f_length, uint8_t x0_length, vector_t x0_arr[], enum NON_LIN_ALGORITHM algo, vector_t est_x_arr[], void(*get_non_lin_sys)(vector_t x_arr[], vector_t f_vec[]), void(*get_jacobian)(vector_t x_arr[], matrix_t J[][x0_length]))
Solve systems of multi-variant nonlinear equations.