ArcCot (Built-in Mathematica Symbol)

ArcCot[z] gives the arc cotangent cot -1 (z) of the complex number z.

ArcCsch (Built-in Mathematica Symbol)

ArcCsch[z] gives the inverse hyperbolic cosecant csch -1 (z) of the complex number z.

ArcSech (Built-in Mathematica Symbol)

ArcSech[z] gives the inverse hyperbolic secant sech -1 (z) of the complex number z.

ArcTanh (Built-in Mathematica Symbol)

ArcTanh[z] gives the inverse hyperbolic tangent tanh -1 (z) of the complex number z.

BarnesG (Built-in Mathematica Symbol)

BarnesG[z] gives the Barnes G-function G(z).

BesselJZero (Built-in Mathematica Symbol)

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).

ChebyshevU (Built-in Mathematica Symbol)

ChebyshevU[n, x] gives the Chebyshev polynomial of the second kind U_n (x).

Denominator (Built-in Mathematica Symbol)

Denominator[expr] gives the denominator of expr.

DiscreteDelta (Built-in Mathematica Symbol)

DiscreteDelta[n_1, n_2, ...] gives the discrete delta function \[Delta] (n_1, n_2, ...), equal to 1 if all the n_i are zero, and 0 otherwise.