\[\Psi^{(\mathrm{E})}\left(x,y,0\right)=2\pi^{2}(\tfrac{2}{3})^{2/3}\Re\left(%
\operatorname{Ai}\left(\frac{x+iy}{12^{1/3}}\right)\operatorname{Bi}\left(%
\frac{x-iy}{12^{1/3}}\right)\right),\]