Digital Library of Mathematical Functions
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NIST
1 Algebraic and Analytic MethodsNotation

§1.1 Special Notation

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

x,y real variables.
z real variable in §§1.51.6.
z,w complex variables in §§1.91.11.
j,k, integers.
m,n nonnegative integers, unless specified otherwise.
f,g distribution.
deg degree.
primes derivatives with respect to the variable, except where indicated otherwise.