BesselJZero[n, k] represents the k\[Null]^th zero of the Bessel function J_n (x).BesselJZero[n, k, x_0] represents the k\[Null]^th zero greater than x_0.
BesselK
(Built-in Mathematica Symbol) BesselK[n, z] gives the modified Bessel function of the second kind K_n (z).
BesselY
(Built-in Mathematica Symbol) BesselY[n, z] gives the Bessel function of the second kind Y_n (z).
BitAnd
(Built-in Mathematica Symbol) BitAnd[n_1, n_2, ...] gives the bitwise AND of the integers n_i.
BitXor
(Built-in Mathematica Symbol) BitXor[n_1, n_2, ...] gives the bitwise XOR of the integers n_i.
ChebyshevT[n, x] gives the Chebyshev polynomial of the first kind T_n (x).
DawsonF
(Built-in Mathematica Symbol) DawsonF[z] gives the Dawson integral F(z).
DedekindEta[\[Tau]] gives the Dedekind eta modular elliptic function \[Eta](\[Tau]).
DigitCount[n, b, d] gives the number of d digits in the base-b representation of n. DigitCount[n, b] gives a list of the numbers of 1, 2, ..., b - 1, 0 digits in the base-b ...
FiniteAbelianGroupCount[n] gives the number of finite Abelian groups of order n.