SetAccuracy[expr, a] yields a version of expr in which all numbers have been set to have accuracy a.
SetterBar[x, {val_1, val_2, ...}] represents a setter bar with setting x and with setter buttons for values val_i.SetterBar[Dynamic[x], {val_1, val_2, ...}] takes the setting ...
Setter
(Built-in Mathematica Symbol) Setter[x, val] represents a setter button whose setting x is set to val when the button is clicked. The button is labeled with val, and appears pressed if the value of x is ...
SiegelTheta[\[CapitalOmega], s] gives the Siegel theta function \[CapitalTheta] (\[CapitalOmega], s) with Riemann modular matrix \[CapitalOmega] and vector ...
SinhIntegral[z] gives the hyperbolic sine integral function Shi(z).
SixJSymbol[{j_1, j_2, j_3}, {j_4, j_5, j_6}] gives the values of the Racah 6-j symbol.
Sound
(Built-in Mathematica Symbol) Sound[primitives] represents a sound. Sound[primitives, t] specifies that the sound should have duration t.Sound[primitives, {t_min, t_max}] specifies that the sound should ...
Sow
(Built-in Mathematica Symbol) Sow[e] specifies that e should be collected by the nearest enclosing Reap. Sow[e, tag] specifies that e should be collected by the nearest enclosing Reap whose pattern ...
Spacings is an option to Grid and related constructs that specifies the spacings to leave between successive objects.
Sphere
(Built-in Mathematica Symbol) Sphere[{x, y, z}, r] represents a sphere of radius r centered at (x, y, z). Sphere[{x, y, z}] represents a sphere of radius 1. Sphere[{{x_1, y_1, z_1}, {x_2, y_2, z_2}, ...}, ...