KelvinKer[z] gives the Kelvin function ker(z).KelvinKer[n, z] gives the Kelvin function ker_n (z).
KroneckerDelta[n_1, n_2, ...] gives the Kronecker delta \[Delta] Subscript[n, 1] Subscript[n, 2] ..., equal to 1 if all the n_i are equal, and 0 otherwise.
Log2
(Built-in Mathematica Symbol) Log2[x] gives the base-2 logarithm of x.
MachinePrecision is a symbol used to indicate machine-number precision.
Method
(Built-in Mathematica Symbol) Method is an option for various algorithm-intensive functions that specifies what internal methods they should use.
NevilleThetaC[z, m] gives the Neville theta function \[CurlyTheta]_c (z \[VerticalSeparator] m).
a ** b ** c is a general associative, but non-commutative, form of multiplication.
PeronaMalikFilter[image] applies a Perona\[Dash]Malik diffusion filter to image.PeronaMalikFilter[image, t] specifies the amount of diffusion t to be applied. ...
RamanujanTauL[s] gives the Ramanujan tau Dirichlet L-function L(s).
SpheroidalS1[n, m, \[Gamma], z] gives the radial spheroidal function S_n^m, (1)(\[Gamma], z) of the first kind.