Sin
(Built-in Mathematica Symbol) Sin[z] gives the sine of z.
SokalSneathDissimilarity[u, v] gives the Sokal\[Dash]Sneath dissimilarity between Boolean vectors u and v.
SpellingCorrection is an option for StringMatchQ, Names, and related functions that specifies whether strings should be considered to match even when a small fraction of the ...
SphericalHankelH2[n, z] gives the spherical Hankel function of the second kind h_n^(2)(z).
SplineClosed is an option for B-spline functions and graphics primitives that specifies whether spline curves or surfaces should be closed.
StructuredSelection is an option for Cell that specifies whether to allow only complete subexpressions in the cell to be selected interactively using the front end.
StruveL
(Built-in Mathematica Symbol) StruveL[n, z] gives the modified Struve function L n (z).
SystemHelpPath is a global option that specifies which directories are searched for the help notebooks used within the help system.
TabSpacings is an option for character selections that specifies the number of spaces in ems that the cursor advances when the Tab key is pressed.
ThompsonGroupTh[] represents the sporadic simple Thompson group Th.