DLMF: Notations V

♦*♦A♦B♦C♦D♦E♦F♦G♦H♦J♦L♦M♦N♦O♦P♦R♦S♦T♦U♦V♦

$V(x)=\sqrt{\pi}\mathrm{Ai}\!\left(x\right)$: notation used by Fock (1945); §9.1
(with $\mathrm{Ai}\!\left(z\right)$ : Airy function)