(1)B =×E, (2)E =×B4πj, \begin{align} B'&=-\nabla \times E,\\ E'&=\nabla \times B - 4\pi j, \end{align} (3)A =( tXXX  tYYY) \begin{align} A &= \left(\int_t XXX \right. \ &\qquad \left.\vphantom{\int_t} YYY \dots \right) \end{align}