# §9.1 Special Notation

(For other notation see Notation for the Special Functions.)

 nonnegative integer, except in §9.9(iii). real variable. complex variable. arbitrary small positive constant. derivatives with respect to argument.

The main functions treated in this chapter are the Airy functions and , and the Scorer functions and (also known as inhomogeneous Airy functions).

Other notations that have been used are as follows: and for and (Jeffreys (1928), later changed to and ); , (Fock (1945)); (Szegö (1967, §1.81)); , (Tumarkin (1959)).