SymmetricGroup[n] represents the symmetric group of degree n.
SymmetricMatrixQ[m] tests whether m is a symmetric matrix.
SyntaxInformation[f] gives information used to generate syntax coloring and other advisories when f[...] is entered as input.
TagSet
(Built-in Mathematica Symbol) f /: lhs = rhs assigns rhs to be the value of lhs, and associates the assignment with the symbol f.
TakeWhile[list, crit] gives elements e_i from the beginning of list, continuing so long as crit[e_i] is True.
Tally
(Built-in Mathematica Symbol) Tally[list] tallies the elements in list, listing all distinct elements together with their multiplicities.Tally[list, test] uses test to determine whether pairs of elements ...
Thickness[r] is a graphics directive which specifies that lines which follow are to be drawn with thickness r. The thickness r is given as a fraction of the horizontal plot ...
Throw
(Built-in Mathematica Symbol) Throw[value] stops evaluation and returns value as the value of the nearest enclosing Catch. Throw[value, tag] is caught only by Catch[expr, form] where form is a pattern ...
TicksStyle is an option for graphics functions which specifies how ticks should be rendered.
Times
(Built-in Mathematica Symbol) x*y*z, x*y*z, or x y z represents a product of terms.