Sinc (Built-in Mathematica Symbol)

Sinc[z] gives sinc(z).

SphericalHarmonicY (Built-in Mathematica Symbol)

SphericalHarmonicY[l, m, \[Theta], \[Phi]] gives the spherical harmonic Y_l^m(\[Theta], \[Phi]).

SpheroidalEigenvalue (Built-in Mathematica Symbol)

SpheroidalEigenvalue[n, m, \[Gamma]] gives the spheroidal eigenvalue with degree n and order m.

StirlingS1 (Built-in Mathematica Symbol)

StirlingS1[n, m] gives the Stirling number of the first kind S_n^(m).

StruveH (Built-in Mathematica Symbol)

StruveH[n, z] gives the Struve function H n (z).

StruveL (Built-in Mathematica Symbol)

StruveL[n, z] gives the modified Struve function L n (z).

Subfactorial (Built-in Mathematica Symbol)

Subfactorial[n] gives the number of permutations of n objects that leave no object fixed.

Times (Built-in Mathematica Symbol)

x*y*z, x*y*z, or x y z represents a product of terms.

TrigFactor (Built-in Mathematica Symbol)

TrigFactor[expr] factors trigonometric functions in expr.

WhittakerW (Built-in Mathematica Symbol)

WhittakerW[k, m, z] gives the Whittaker function W k, m (z).